9.8
CRITICAL CVSS 3.1
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
Affected Products

The following products are affected by CVE-2026-68476 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
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 fix memory corruption due to skb header reallocation.
  • Update the Linux kernel.
  • Apply provided patches.
  • Rebuild the kernel if necessary.
  • Restart the system.
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
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.