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7.5
HIGH CVSS 3.1
CVE-2026-53392
NFSv4/flexfiles: reject zero filehandle version count
Overview
Description

In the Linux kernel, the following vulnerability has been resolved: NFSv4/flexfiles: reject zero filehandle version count ff_layout_alloc_lseg() decodes the filehandle-version array count from the flexfiles layout body. The value is used as the count for kzalloc_objs(), and the current code only rejects NULL. A zero count yields ZERO_SIZE_PTR, which can be stored in dss_info->fh_versions even though later flexfiles paths assume that at least one filehandle version exists. Reject fh_count == 0 before the allocation, matching the existing zero version_count validation in the flexfiles GETDEVICEINFO parser. A QEMU/KASAN run with a malformed flexfiles layout hit: KASAN: null-ptr-deref in range [0x0000000000000010-0x0000000000000017] RIP: 0010:ff_layout_encode_ff_layoutupdate.isra.0+0x15f/0x750 ff_layout_encode_layoutreturn+0x683/0x970 nfs4_xdr_enc_layoutreturn+0x278/0x3a0 Kernel panic - not syncing: Fatal exception The patched kernel rejects the malformed layout without KASAN/oops/panic, and a valid fh_count=1 regression still opens, reads, and unmounts cleanly.

Details
INFO

Published Date :

July 19, 2026, 12:16 p.m.

Last Modified :

Aug. 17, 2026, 5:17 a.m.

Remotely Exploit :

Yes !

Source :

416baaa9-dc9f-4396-8d5f-8c081fb06d67
Impact
Affected Products

The following products are affected by CVE-2026-53392 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Linux linux_kernel
: Total Affected Vendor : 1 | Products : 1
Scoring
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 HIGH 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Solution
Reject zero filehandle version count to prevent null pointer dereference and kernel panic.
  • Reject fh_count == 0 before allocation.
  • Apply the provided patch to the Linux kernel.
  • Update to a patched Linux kernel version.
References
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2026-53392.

URL Resource
https://git.kernel.org/stable/c/18cc6d57a14fa65ab2a2b52279f549041c4bc9cf Patch
https://git.kernel.org/stable/c/2131ed64b767ffa8bcdb3677d90f3964e39aabc8 Patch
https://git.kernel.org/stable/c/2c6bb3c40bc24f6aa8dfbe6fe98c3ad6389203f2 Patch
https://git.kernel.org/stable/c/7779c85028a0676fb190cde4f0c540f4f8e97761 Patch
https://git.kernel.org/stable/c/9033591535c066726f5b505126ccb4068b98fa4f Patch
https://git.kernel.org/stable/c/be7829715e341b42846437dd9e721005db59f0cc Patch
https://git.kernel.org/stable/c/d8c90c7cc061265d5f2813a1f5c82ef2f4707e67 Patch
https://git.kernel.org/stable/c/eeabb9020721db6bc132e68eeae380b8d4fb4b04 Patch
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-53392 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-53392 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-53392 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2026-53392 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Aug. 17, 2026

    Action Type Old Value New Value
    Changed Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': 'd67ae825a59d639e4d8b82413af84d854617a87e', 'lessThan': '9033591535c066726f5b505126ccb4068b98fa4f', 'versionType': 'git'}, {'status': 'affected', 'version': 'd67ae825a59d639e4d8b82413af84d854617a87e', 'lessThan': '18cc6d57a14fa65ab2a2b52279f549041c4bc9cf', 'versionType': 'git'}, {'status': 'affected', 'version': 'd67ae825a59d639e4d8b82413af84d854617a87e', 'lessThan': 'be7829715e341b42846437dd9e721005db59f0cc', 'versionType': 'git'}, {'status': 'affected', 'version': 'd67ae825a59d639e4d8b82413af84d854617a87e', 'lessThan': 'eeabb9020721db6bc132e68eeae380b8d4fb4b04', 'versionType': 'git'}, {'status': 'affected', 'version': 'd67ae825a59d639e4d8b82413af84d854617a87e', 'lessThan': '7779c85028a0676fb190cde4f0c540f4f8e97761', 'versionType': 'git'}, {'status': 'affected', 'version': 'd67ae825a59d639e4d8b82413af84d854617a87e', 'lessThan': 'd8c90c7cc061265d5f2813a1f5c82ef2f4707e67', 'versionType': 'git'}, {'status': 'affected', 'version': 'd67ae825a59d639e4d8b82413af84d854617a87e', 'lessThan': '2131ed64b767ffa8bcdb3677d90f3964e39aabc8', 'versionType': 'git'}, {'status': 'affected', 'version': 'd67ae825a59d639e4d8b82413af84d854617a87e', 'lessThan': '2c6bb3c40bc24f6aa8dfbe6fe98c3ad6389203f2', 'versionType': 'git'}], 'programFiles': ['fs/nfs/flexfilelayout/flexfilelayout.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '4.0'}, {'status': 'unaffected', 'version': '0', 'lessThan': '4.0', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '5.10.261', 'versionType': 'semver', 'lessThanOrEqual': '5.10.*'}, {'status': 'unaffected', 'version': '5.15.212', 'versionType': 'semver', 'lessThanOrEqual': '5.15.*'}, {'status': 'unaffected', 'version': '6.1.178', 'versionType': 'semver', 'lessThanOrEqual': '6.1.*'}, {'status': 'unaffected', 'version': '6.6.145', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.96', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.38', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.3', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc1', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['fs/nfs/flexfilelayout/flexfilelayout.c'], 'defaultStatus': 'affected'}] [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': 'd67ae825a59d639e4d8b82413af84d854617a87e', 'lessThan': '9033591535c066726f5b505126ccb4068b98fa4f', 'versionType': 'git'}, {'status': 'affected', 'version': 'd67ae825a59d639e4d8b82413af84d854617a87e', 'lessThan': '18cc6d57a14fa65ab2a2b52279f549041c4bc9cf', 'versionType': 'git'}, {'status': 'affected', 'version': 'd67ae825a59d639e4d8b82413af84d854617a87e', 'lessThan': 'be7829715e341b42846437dd9e721005db59f0cc', 'versionType': 'git'}, {'status': 'affected', 'version': 'd67ae825a59d639e4d8b82413af84d854617a87e', 'lessThan': 'eeabb9020721db6bc132e68eeae380b8d4fb4b04', 'versionType': 'git'}, {'status': 'affected', 'version': 'd67ae825a59d639e4d8b82413af84d854617a87e', 'lessThan': '7779c85028a0676fb190cde4f0c540f4f8e97761', 'versionType': 'git'}, {'status': 'affected', 'version': 'd67ae825a59d639e4d8b82413af84d854617a87e', 'lessThan': 'd8c90c7cc061265d5f2813a1f5c82ef2f4707e67', 'versionType': 'git'}, {'status': 'affected', 'version': 'd67ae825a59d639e4d8b82413af84d854617a87e', 'lessThan': '2131ed64b767ffa8bcdb3677d90f3964e39aabc8', 'versionType': 'git'}, {'status': 'affected', 'version': 'd67ae825a59d639e4d8b82413af84d854617a87e', 'lessThan': '2c6bb3c40bc24f6aa8dfbe6fe98c3ad6389203f2', 'versionType': 'git'}], 'programFiles': ['fs/nfs/flexfilelayout/flexfilelayout.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '4.0'}, {'status': 'unaffected', 'version': '0', 'lessThan': '4.0', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '5.10.261', 'versionType': 'semver', 'lessThanOrEqual': '5.10.*'}, {'status': 'unaffected', 'version': '5.15.212', 'versionType': 'semver', 'lessThanOrEqual': '5.15.*'}, {'status': 'unaffected', 'version': '6.1.178', 'versionType': 'semver', 'lessThanOrEqual': '6.1.*'}, {'status': 'unaffected', 'version': '6.6.145', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.96', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.38', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.3', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['fs/nfs/flexfilelayout/flexfilelayout.c'], 'defaultStatus': 'affected'}]
  • Initial Analysis by [email protected]

    Jul. 29, 2026

    Action Type Old Value New Value
    Added CWE CWE-476
    Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.13 up to (excluding) 6.18.38 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.19 up to (excluding) 7.1.3 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.0 up to (excluding) 5.10.261 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.15.212 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 up to (excluding) 6.1.178 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.2 up to (excluding) 6.6.145 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.7 up to (excluding) 6.12.96
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/18cc6d57a14fa65ab2a2b52279f549041c4bc9cf Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/2131ed64b767ffa8bcdb3677d90f3964e39aabc8 Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/2c6bb3c40bc24f6aa8dfbe6fe98c3ad6389203f2 Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/7779c85028a0676fb190cde4f0c540f4f8e97761 Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/9033591535c066726f5b505126ccb4068b98fa4f Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/be7829715e341b42846437dd9e721005db59f0cc Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/d8c90c7cc061265d5f2813a1f5c82ef2f4707e67 Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/eeabb9020721db6bc132e68eeae380b8d4fb4b04 Types: Patch
  • CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Jul. 24, 2026

    Action Type Old Value New Value
    Added Reference https://git.kernel.org/stable/c/18cc6d57a14fa65ab2a2b52279f549041c4bc9cf
    Added Reference https://git.kernel.org/stable/c/9033591535c066726f5b505126ccb4068b98fa4f
    Added Reference https://git.kernel.org/stable/c/be7829715e341b42846437dd9e721005db59f0cc
    Added Reference https://git.kernel.org/stable/c/eeabb9020721db6bc132e68eeae380b8d4fb4b04
    Changed Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': 'd67ae825a59d639e4d8b82413af84d854617a87e', 'lessThan': '7779c85028a0676fb190cde4f0c540f4f8e97761', 'versionType': 'git'}, {'status': 'affected', 'version': 'd67ae825a59d639e4d8b82413af84d854617a87e', 'lessThan': 'd8c90c7cc061265d5f2813a1f5c82ef2f4707e67', 'versionType': 'git'}, {'status': 'affected', 'version': 'd67ae825a59d639e4d8b82413af84d854617a87e', 'lessThan': '2131ed64b767ffa8bcdb3677d90f3964e39aabc8', 'versionType': 'git'}, {'status': 'affected', 'version': 'd67ae825a59d639e4d8b82413af84d854617a87e', 'lessThan': '2c6bb3c40bc24f6aa8dfbe6fe98c3ad6389203f2', 'versionType': 'git'}], 'programFiles': ['fs/nfs/flexfilelayout/flexfilelayout.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '4.0'}, {'status': 'unaffected', 'version': '0', 'lessThan': '4.0', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.12.96', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.38', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.3', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc1', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['fs/nfs/flexfilelayout/flexfilelayout.c'], 'defaultStatus': 'affected'}] [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': 'd67ae825a59d639e4d8b82413af84d854617a87e', 'lessThan': '9033591535c066726f5b505126ccb4068b98fa4f', 'versionType': 'git'}, {'status': 'affected', 'version': 'd67ae825a59d639e4d8b82413af84d854617a87e', 'lessThan': '18cc6d57a14fa65ab2a2b52279f549041c4bc9cf', 'versionType': 'git'}, {'status': 'affected', 'version': 'd67ae825a59d639e4d8b82413af84d854617a87e', 'lessThan': 'be7829715e341b42846437dd9e721005db59f0cc', 'versionType': 'git'}, {'status': 'affected', 'version': 'd67ae825a59d639e4d8b82413af84d854617a87e', 'lessThan': 'eeabb9020721db6bc132e68eeae380b8d4fb4b04', 'versionType': 'git'}, {'status': 'affected', 'version': 'd67ae825a59d639e4d8b82413af84d854617a87e', 'lessThan': '7779c85028a0676fb190cde4f0c540f4f8e97761', 'versionType': 'git'}, {'status': 'affected', 'version': 'd67ae825a59d639e4d8b82413af84d854617a87e', 'lessThan': 'd8c90c7cc061265d5f2813a1f5c82ef2f4707e67', 'versionType': 'git'}, {'status': 'affected', 'version': 'd67ae825a59d639e4d8b82413af84d854617a87e', 'lessThan': '2131ed64b767ffa8bcdb3677d90f3964e39aabc8', 'versionType': 'git'}, {'status': 'affected', 'version': 'd67ae825a59d639e4d8b82413af84d854617a87e', 'lessThan': '2c6bb3c40bc24f6aa8dfbe6fe98c3ad6389203f2', 'versionType': 'git'}], 'programFiles': ['fs/nfs/flexfilelayout/flexfilelayout.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '4.0'}, {'status': 'unaffected', 'version': '0', 'lessThan': '4.0', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '5.10.261', 'versionType': 'semver', 'lessThanOrEqual': '5.10.*'}, {'status': 'unaffected', 'version': '5.15.212', 'versionType': 'semver', 'lessThanOrEqual': '5.15.*'}, {'status': 'unaffected', 'version': '6.1.178', 'versionType': 'semver', 'lessThanOrEqual': '6.1.*'}, {'status': 'unaffected', 'version': '6.6.145', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.96', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.38', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.3', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc1', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['fs/nfs/flexfilelayout/flexfilelayout.c'], 'defaultStatus': 'affected'}]
  • CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Jul. 20, 2026

    Action Type Old Value New Value
    Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Jul. 19, 2026

    Action Type Old Value New Value
    Added Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': 'd67ae825a59d639e4d8b82413af84d854617a87e', 'lessThan': '7779c85028a0676fb190cde4f0c540f4f8e97761', 'versionType': 'git'}, {'status': 'affected', 'version': 'd67ae825a59d639e4d8b82413af84d854617a87e', 'lessThan': 'd8c90c7cc061265d5f2813a1f5c82ef2f4707e67', 'versionType': 'git'}, {'status': 'affected', 'version': 'd67ae825a59d639e4d8b82413af84d854617a87e', 'lessThan': '2131ed64b767ffa8bcdb3677d90f3964e39aabc8', 'versionType': 'git'}, {'status': 'affected', 'version': 'd67ae825a59d639e4d8b82413af84d854617a87e', 'lessThan': '2c6bb3c40bc24f6aa8dfbe6fe98c3ad6389203f2', 'versionType': 'git'}], 'programFiles': ['fs/nfs/flexfilelayout/flexfilelayout.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '4.0'}, {'status': 'unaffected', 'version': '0', 'lessThan': '4.0', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.12.96', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.38', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.3', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc1', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['fs/nfs/flexfilelayout/flexfilelayout.c'], 'defaultStatus': 'affected'}]
    Added Description In the Linux kernel, the following vulnerability has been resolved: NFSv4/flexfiles: reject zero filehandle version count ff_layout_alloc_lseg() decodes the filehandle-version array count from the flexfiles layout body. The value is used as the count for kzalloc_objs(), and the current code only rejects NULL. A zero count yields ZERO_SIZE_PTR, which can be stored in dss_info->fh_versions even though later flexfiles paths assume that at least one filehandle version exists. Reject fh_count == 0 before the allocation, matching the existing zero version_count validation in the flexfiles GETDEVICEINFO parser. A QEMU/KASAN run with a malformed flexfiles layout hit: KASAN: null-ptr-deref in range [0x0000000000000010-0x0000000000000017] RIP: 0010:ff_layout_encode_ff_layoutupdate.isra.0+0x15f/0x750 ff_layout_encode_layoutreturn+0x683/0x970 nfs4_xdr_enc_layoutreturn+0x278/0x3a0 Kernel panic - not syncing: Fatal exception The patched kernel rejects the malformed layout without KASAN/oops/panic, and a valid fh_count=1 regression still opens, reads, and unmounts cleanly.
    Added Reference https://git.kernel.org/stable/c/2131ed64b767ffa8bcdb3677d90f3964e39aabc8
    Added Reference https://git.kernel.org/stable/c/2c6bb3c40bc24f6aa8dfbe6fe98c3ad6389203f2
    Added Reference https://git.kernel.org/stable/c/7779c85028a0676fb190cde4f0c540f4f8e97761
    Added Reference https://git.kernel.org/stable/c/d8c90c7cc061265d5f2813a1f5c82ef2f4707e67
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CVSS
Vulnerability Scoring Details
Base CVSS Score: 7.5
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact