CVE-2026-68476
ipvs: reload ip header after head reallocation
Description
In the Linux kernel, the following vulnerability has been resolved: ipvs: reload ip header after head reallocation __ip_vs_get_out_rt() calls skb_ensure_writable() which may reallocate skb->head.
INFO
Published Date :
Aug. 15, 2026, 6:20 a.m.
Last Modified :
Aug. 17, 2026, 6:17 a.m.
Remotely Exploit :
Yes !
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | CRITICAL | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 |
Solution
- Update the Linux kernel.
- Apply provided patches.
- Rebuild the kernel if necessary.
- Restart the system.
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-2026-68476.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-68476 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-2026-68476
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-2026-68476 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-68476 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: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': '8d8e20e2d7bba8c50e64e0eca1cb83956f468e49', 'lessThan': 'ac6ac3d35bfc0ade9d17d354c84e503a946ebdab', 'versionType': 'git'}, {'status': 'affected', 'version': '8d8e20e2d7bba8c50e64e0eca1cb83956f468e49', 'lessThan': 'e51687fc56c2e39ea6e9532925f1aabd4d529f61', 'versionType': 'git'}, {'status': 'affected', 'version': '8d8e20e2d7bba8c50e64e0eca1cb83956f468e49', 'lessThan': '3fb7edd2018bb1ad0a68157383d9b9dac33dd645', 'versionType': 'git'}, {'status': 'affected', 'version': '8d8e20e2d7bba8c50e64e0eca1cb83956f468e49', 'lessThan': 'ad1e14710b360bda087ebf9fb82460eb5ef775de', 'versionType': 'git'}, {'status': 'affected', 'version': '8d8e20e2d7bba8c50e64e0eca1cb83956f468e49', 'lessThan': 'a2f57827bf7c695b8c72dc4511cae8e86582369d', 'versionType': 'git'}], 'programFiles': ['net/netfilter/ipvs/ip_vs_xmit.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '4.10'}, {'status': 'unaffected', 'version': '0', 'lessThan': '4.10', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.6.145', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.97', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.40', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.5', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc4', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['net/netfilter/ipvs/ip_vs_xmit.c'], 'defaultStatus': 'affected'}] [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '8d8e20e2d7bba8c50e64e0eca1cb83956f468e49', 'lessThan': 'ac6ac3d35bfc0ade9d17d354c84e503a946ebdab', 'versionType': 'git'}, {'status': 'affected', 'version': '8d8e20e2d7bba8c50e64e0eca1cb83956f468e49', 'lessThan': 'e51687fc56c2e39ea6e9532925f1aabd4d529f61', 'versionType': 'git'}, {'status': 'affected', 'version': '8d8e20e2d7bba8c50e64e0eca1cb83956f468e49', 'lessThan': '3fb7edd2018bb1ad0a68157383d9b9dac33dd645', 'versionType': 'git'}, {'status': 'affected', 'version': '8d8e20e2d7bba8c50e64e0eca1cb83956f468e49', 'lessThan': 'ad1e14710b360bda087ebf9fb82460eb5ef775de', 'versionType': 'git'}, {'status': 'affected', 'version': '8d8e20e2d7bba8c50e64e0eca1cb83956f468e49', 'lessThan': 'a2f57827bf7c695b8c72dc4511cae8e86582369d', 'versionType': 'git'}], 'programFiles': ['net/netfilter/ipvs/ip_vs_xmit.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '4.10'}, {'status': 'unaffected', 'version': '0', 'lessThan': '4.10', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.6.145', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.97', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.40', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.5', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['net/netfilter/ipvs/ip_vs_xmit.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': '8d8e20e2d7bba8c50e64e0eca1cb83956f468e49', 'lessThan': 'ac6ac3d35bfc0ade9d17d354c84e503a946ebdab', 'versionType': 'git'}, {'status': 'affected', 'version': '8d8e20e2d7bba8c50e64e0eca1cb83956f468e49', 'lessThan': 'e51687fc56c2e39ea6e9532925f1aabd4d529f61', 'versionType': 'git'}, {'status': 'affected', 'version': '8d8e20e2d7bba8c50e64e0eca1cb83956f468e49', 'lessThan': '3fb7edd2018bb1ad0a68157383d9b9dac33dd645', 'versionType': 'git'}, {'status': 'affected', 'version': '8d8e20e2d7bba8c50e64e0eca1cb83956f468e49', 'lessThan': 'ad1e14710b360bda087ebf9fb82460eb5ef775de', 'versionType': 'git'}, {'status': 'affected', 'version': '8d8e20e2d7bba8c50e64e0eca1cb83956f468e49', 'lessThan': 'a2f57827bf7c695b8c72dc4511cae8e86582369d', 'versionType': 'git'}], 'programFiles': ['net/netfilter/ipvs/ip_vs_xmit.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '4.10'}, {'status': 'unaffected', 'version': '0', 'lessThan': '4.10', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.6.145', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.97', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.40', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.5', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc4', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['net/netfilter/ipvs/ip_vs_xmit.c'], 'defaultStatus': 'affected'}] Added Description In the Linux kernel, the following vulnerability has been resolved: ipvs: reload ip header after head reallocation __ip_vs_get_out_rt() calls skb_ensure_writable() which may reallocate skb->head. Added Reference https://git.kernel.org/stable/c/3fb7edd2018bb1ad0a68157383d9b9dac33dd645 Added Reference https://git.kernel.org/stable/c/a2f57827bf7c695b8c72dc4511cae8e86582369d Added Reference https://git.kernel.org/stable/c/ac6ac3d35bfc0ade9d17d354c84e503a946ebdab Added Reference https://git.kernel.org/stable/c/ad1e14710b360bda087ebf9fb82460eb5ef775de Added Reference https://git.kernel.org/stable/c/e51687fc56c2e39ea6e9532925f1aabd4d529f61