9.8
CRITICAL
CVSS 3.1
CVE-2026-74474
vxlan: use pskb_network_may_pull() for transmit path header pulls
Overview
Description
In the Linux kernel, the following vulnerability has been resolved: vxlan: use pskb_network_may_pull() for transmit path header pulls In vxlan_xmit(), arp_reduce(), and vxlan_mdb_entry_skb_get(), pskb_may_pull() was being called to verify the availability of network layer headers (ARP, IPv6/ND, IP/IPv6 MDB keys). However, during transmit skb->data points to the MAC header, so skb_network_offset(skb) is ETH_HLEN (14 bytes). Using pskb_may_pull(skb, len) only checks len bytes from skb->data rather than skb_network_offset(skb) + len, which can leave part of the network header in non-linear frags. Replace these remaining pskb_may_pull() calls with pskb_network_may_pull() to properly account for the MAC header offset.
Details
INFO
Published Date :
Aug. 15, 2026, 1:17 p.m.
Last Modified :
Sept. 14, 2026, 12:17 p.m.
Remotely Exploit :
Yes !
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
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 | CRITICAL | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 |
Solution
Update the Linux kernel to address header pull issues in vxlan.
- Update the Linux kernel to the latest version.
- Verify the patch for vxlan header pulls is applied.
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-2026-74474.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-74474 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-2026-74474
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-2026-74474 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-74474 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
Sep. 14, 2026
Action Type Old Value New Value Added Affected Affected value modified. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/74xxx/CVE-2026-74474.json">CVE-2026-74474</a> Added Reference https://git.kernel.org/stable/c/371425d4be7795e9158388af9eee0201e6047410 Added Reference https://git.kernel.org/stable/c/6146901881f09ef063eb34ad389f63231f8486f5 Added Reference https://git.kernel.org/stable/c/7076a34b6e33315dc160b4612bfea1c597495585 Added Reference https://git.kernel.org/stable/c/94dee751aad627b3645d424b5d0c736d394573e9 Added Reference https://git.kernel.org/stable/c/b9553558b48db54ac9273e6b98d7263ef5c1a329 Added Reference https://git.kernel.org/stable/c/bb01c51950c3ff3c76acdd54b85ab38ccc2a8bb4 Removed Reference https://git.kernel.org/stable/c/6146901881f09ef063eb34ad389f63231f8486f5 Removed Reference https://git.kernel.org/stable/c/7076a34b6e33315dc160b4612bfea1c597495585 Removed Reference https://git.kernel.org/stable/c/94dee751aad627b3645d424b5d0c736d394573e9 Removed Reference https://git.kernel.org/stable/c/b9553558b48db54ac9273e6b98d7263ef5c1a329 Removed Reference https://git.kernel.org/stable/c/bb01c51950c3ff3c76acdd54b85ab38ccc2a8bb4 -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Aug. 23, 2026
Action Type Old Value New Value Added Reference https://git.kernel.org/stable/c/6146901881f09ef063eb34ad389f63231f8486f5 Added Reference https://git.kernel.org/stable/c/bb01c51950c3ff3c76acdd54b85ab38ccc2a8bb4 Changed Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': 'e4f67addf158f98f8197e08974966b18480dc751', 'lessThan': '94dee751aad627b3645d424b5d0c736d394573e9', 'versionType': 'git'}, {'status': 'affected', 'version': 'e4f67addf158f98f8197e08974966b18480dc751', 'lessThan': '7076a34b6e33315dc160b4612bfea1c597495585', 'versionType': 'git'}, {'status': 'affected', 'version': 'e4f67addf158f98f8197e08974966b18480dc751', 'lessThan': 'b9553558b48db54ac9273e6b98d7263ef5c1a329', 'versionType': 'git'}], 'programFiles': ['drivers/net/vxlan/vxlan_core.c', 'drivers/net/vxlan/vxlan_mdb.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '3.8'}, {'status': 'unaffected', 'version': '0', 'lessThan': '3.8', 'versionType': 'semver'}, {'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/net/vxlan/vxlan_core.c', 'drivers/net/vxlan/vxlan_mdb.c'], 'defaultStatus': 'affected'}] [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': 'e4f67addf158f98f8197e08974966b18480dc751', 'lessThan': 'bb01c51950c3ff3c76acdd54b85ab38ccc2a8bb4', 'versionType': 'git'}, {'status': 'affected', 'version': 'e4f67addf158f98f8197e08974966b18480dc751', 'lessThan': '6146901881f09ef063eb34ad389f63231f8486f5', 'versionType': 'git'}, {'status': 'affected', 'version': 'e4f67addf158f98f8197e08974966b18480dc751', 'lessThan': '94dee751aad627b3645d424b5d0c736d394573e9', 'versionType': 'git'}, {'status': 'affected', 'version': 'e4f67addf158f98f8197e08974966b18480dc751', 'lessThan': '7076a34b6e33315dc160b4612bfea1c597495585', 'versionType': 'git'}, {'status': 'affected', 'version': 'e4f67addf158f98f8197e08974966b18480dc751', 'lessThan': 'b9553558b48db54ac9273e6b98d7263ef5c1a329', 'versionType': 'git'}], 'programFiles': ['drivers/net/vxlan/vxlan_core.c', 'drivers/net/vxlan/vxlan_mdb.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '3.8'}, {'status': 'unaffected', 'version': '0', 'lessThan': '3.8', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.6.153', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.105', '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/net/vxlan/vxlan_core.c', 'drivers/net/vxlan/vxlan_mdb.c'], 'defaultStatus': 'affected'}] -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Aug. 17, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/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': 'e4f67addf158f98f8197e08974966b18480dc751', 'lessThan': '94dee751aad627b3645d424b5d0c736d394573e9', 'versionType': 'git'}, {'status': 'affected', 'version': 'e4f67addf158f98f8197e08974966b18480dc751', 'lessThan': '7076a34b6e33315dc160b4612bfea1c597495585', 'versionType': 'git'}, {'status': 'affected', 'version': 'e4f67addf158f98f8197e08974966b18480dc751', 'lessThan': 'b9553558b48db54ac9273e6b98d7263ef5c1a329', 'versionType': 'git'}], 'programFiles': ['drivers/net/vxlan/vxlan_core.c', 'drivers/net/vxlan/vxlan_mdb.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '3.8'}, {'status': 'unaffected', 'version': '0', 'lessThan': '3.8', 'versionType': 'semver'}, {'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/net/vxlan/vxlan_core.c', 'drivers/net/vxlan/vxlan_mdb.c'], 'defaultStatus': 'affected'}] [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': 'e4f67addf158f98f8197e08974966b18480dc751', 'lessThan': '94dee751aad627b3645d424b5d0c736d394573e9', 'versionType': 'git'}, {'status': 'affected', 'version': 'e4f67addf158f98f8197e08974966b18480dc751', 'lessThan': '7076a34b6e33315dc160b4612bfea1c597495585', 'versionType': 'git'}, {'status': 'affected', 'version': 'e4f67addf158f98f8197e08974966b18480dc751', 'lessThan': 'b9553558b48db54ac9273e6b98d7263ef5c1a329', 'versionType': 'git'}], 'programFiles': ['drivers/net/vxlan/vxlan_core.c', 'drivers/net/vxlan/vxlan_mdb.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '3.8'}, {'status': 'unaffected', 'version': '0', 'lessThan': '3.8', 'versionType': 'semver'}, {'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/net/vxlan/vxlan_core.c', 'drivers/net/vxlan/vxlan_mdb.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': 'e4f67addf158f98f8197e08974966b18480dc751', 'lessThan': '94dee751aad627b3645d424b5d0c736d394573e9', 'versionType': 'git'}, {'status': 'affected', 'version': 'e4f67addf158f98f8197e08974966b18480dc751', 'lessThan': '7076a34b6e33315dc160b4612bfea1c597495585', 'versionType': 'git'}, {'status': 'affected', 'version': 'e4f67addf158f98f8197e08974966b18480dc751', 'lessThan': 'b9553558b48db54ac9273e6b98d7263ef5c1a329', 'versionType': 'git'}], 'programFiles': ['drivers/net/vxlan/vxlan_core.c', 'drivers/net/vxlan/vxlan_mdb.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '3.8'}, {'status': 'unaffected', 'version': '0', 'lessThan': '3.8', 'versionType': 'semver'}, {'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/net/vxlan/vxlan_core.c', 'drivers/net/vxlan/vxlan_mdb.c'], 'defaultStatus': 'affected'}] Added Description In the Linux kernel, the following vulnerability has been resolved: vxlan: use pskb_network_may_pull() for transmit path header pulls In vxlan_xmit(), arp_reduce(), and vxlan_mdb_entry_skb_get(), pskb_may_pull() was being called to verify the availability of network layer headers (ARP, IPv6/ND, IP/IPv6 MDB keys). However, during transmit skb->data points to the MAC header, so skb_network_offset(skb) is ETH_HLEN (14 bytes). Using pskb_may_pull(skb, len) only checks len bytes from skb->data rather than skb_network_offset(skb) + len, which can leave part of the network header in non-linear frags. Replace these remaining pskb_may_pull() calls with pskb_network_may_pull() to properly account for the MAC header offset. Added Reference https://git.kernel.org/stable/c/7076a34b6e33315dc160b4612bfea1c597495585 Added Reference https://git.kernel.org/stable/c/94dee751aad627b3645d424b5d0c736d394573e9 Added Reference https://git.kernel.org/stable/c/b9553558b48db54ac9273e6b98d7263ef5c1a329
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.