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7.8
HIGH CVSS 3.1
CVE-2026-74451
drm/panthor: validate firmware interface structure sizes
Overview
Description

In the Linux kernel, the following vulnerability has been resolved: drm/panthor: validate firmware interface structure sizes iface_fw_to_cpu_addr() only checks that the firmware-provided MCU virtual address points inside the shared section. The returned pointer is later used as a full firmware interface structure, so accepting an address near the end of the shared section can still lead to out-of-bounds accesses. Pass the expected object size to iface_fw_to_cpu_addr() and reject ranges that do not fit entirely in the shared section.

Details
INFO

Published Date :

Aug. 15, 2026, 1:17 p.m.

Last Modified :

Aug. 17, 2026, 6:19 a.m.

Remotely Exploit :

No

Source :

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

The following products are affected by CVE-2026-74451 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
Validate firmware interface structure sizes to prevent out-of-bounds access.
  • Validate firmware interface structure sizes.
  • Reject ranges not fitting shared section.
  • Ensure addresses are within bounds.
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-2026-74451.

URL Resource
https://git.kernel.org/stable/c/21c77486f5a60bb9c0433c21de62a5f25d5091f1
https://git.kernel.org/stable/c/b921b8613790a3f9e78ab64017fa7149ef0b750c
https://git.kernel.org/stable/c/c835f2b0b7167584832b516c9b0a26e9180d1d0b
https://git.kernel.org/stable/c/ca41d9f3a21586bf29df53eec05152ecf2b2f94f
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-74451 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-2026-74451 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-2026-74451 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-2026-74451 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
    Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
    Changed Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '2718d91816eeed03c09c8abe872e45f59078768c', 'lessThan': '21c77486f5a60bb9c0433c21de62a5f25d5091f1', 'versionType': 'git'}, {'status': 'affected', 'version': '2718d91816eeed03c09c8abe872e45f59078768c', 'lessThan': 'c835f2b0b7167584832b516c9b0a26e9180d1d0b', 'versionType': 'git'}, {'status': 'affected', 'version': '2718d91816eeed03c09c8abe872e45f59078768c', 'lessThan': 'ca41d9f3a21586bf29df53eec05152ecf2b2f94f', 'versionType': 'git'}, {'status': 'affected', 'version': '2718d91816eeed03c09c8abe872e45f59078768c', 'lessThan': 'b921b8613790a3f9e78ab64017fa7149ef0b750c', 'versionType': 'git'}], 'programFiles': ['drivers/gpu/drm/panthor/panthor_fw.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '6.10'}, {'status': 'unaffected', 'version': '0', 'lessThan': '6.10', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.12.103', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.44', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.8', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc6', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/gpu/drm/panthor/panthor_fw.c'], 'defaultStatus': 'affected'}] [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '2718d91816eeed03c09c8abe872e45f59078768c', 'lessThan': '21c77486f5a60bb9c0433c21de62a5f25d5091f1', 'versionType': 'git'}, {'status': 'affected', 'version': '2718d91816eeed03c09c8abe872e45f59078768c', 'lessThan': 'c835f2b0b7167584832b516c9b0a26e9180d1d0b', 'versionType': 'git'}, {'status': 'affected', 'version': '2718d91816eeed03c09c8abe872e45f59078768c', 'lessThan': 'ca41d9f3a21586bf29df53eec05152ecf2b2f94f', 'versionType': 'git'}, {'status': 'affected', 'version': '2718d91816eeed03c09c8abe872e45f59078768c', 'lessThan': 'b921b8613790a3f9e78ab64017fa7149ef0b750c', 'versionType': 'git'}], 'programFiles': ['drivers/gpu/drm/panthor/panthor_fw.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '6.10'}, {'status': 'unaffected', 'version': '0', 'lessThan': '6.10', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.12.103', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.44', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.8', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/gpu/drm/panthor/panthor_fw.c'], 'defaultStatus': 'affected'}]
  • New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Aug. 15, 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': '2718d91816eeed03c09c8abe872e45f59078768c', 'lessThan': '21c77486f5a60bb9c0433c21de62a5f25d5091f1', 'versionType': 'git'}, {'status': 'affected', 'version': '2718d91816eeed03c09c8abe872e45f59078768c', 'lessThan': 'c835f2b0b7167584832b516c9b0a26e9180d1d0b', 'versionType': 'git'}, {'status': 'affected', 'version': '2718d91816eeed03c09c8abe872e45f59078768c', 'lessThan': 'ca41d9f3a21586bf29df53eec05152ecf2b2f94f', 'versionType': 'git'}, {'status': 'affected', 'version': '2718d91816eeed03c09c8abe872e45f59078768c', 'lessThan': 'b921b8613790a3f9e78ab64017fa7149ef0b750c', 'versionType': 'git'}], 'programFiles': ['drivers/gpu/drm/panthor/panthor_fw.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '6.10'}, {'status': 'unaffected', 'version': '0', 'lessThan': '6.10', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.12.103', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.44', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.8', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc6', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/gpu/drm/panthor/panthor_fw.c'], 'defaultStatus': 'affected'}]
    Added Description In the Linux kernel, the following vulnerability has been resolved: drm/panthor: validate firmware interface structure sizes iface_fw_to_cpu_addr() only checks that the firmware-provided MCU virtual address points inside the shared section. The returned pointer is later used as a full firmware interface structure, so accepting an address near the end of the shared section can still lead to out-of-bounds accesses. Pass the expected object size to iface_fw_to_cpu_addr() and reject ranges that do not fit entirely in the shared section.
    Added Reference https://git.kernel.org/stable/c/21c77486f5a60bb9c0433c21de62a5f25d5091f1
    Added Reference https://git.kernel.org/stable/c/b921b8613790a3f9e78ab64017fa7149ef0b750c
    Added Reference https://git.kernel.org/stable/c/c835f2b0b7167584832b516c9b0a26e9180d1d0b
    Added Reference https://git.kernel.org/stable/c/ca41d9f3a21586bf29df53eec05152ecf2b2f94f
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: 7.8
Attack Vector
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