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CVE-2026-72319

9.8 · CRITICAL

In the Linux kernel, the following vulnerability has been resolved: ipvs: ensure inner headers in ICMP errors are in headroom Sashiko points out that after stripping the outer headers with pskb_p…

Published Aug 15, 2026EPSS 0.76%

Overview

CVE-2026-72319 is a critical-severity vulnerability. It was published on August 15, 2026 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

In the Linux kernel, the following vulnerability has been resolved:

ipvs: ensure inner headers in ICMP errors are in headroom

Sashiko points out that after stripping the outer headers

with pskb_pull() we should ensure the inner IP headers

in ICMP errors from tunnels are present in the skb headroom

for functions like ipv4_update_pmtu(), icmp_send() and

IP_VS_DBG().

Also, add more checks for the length of the inner headers.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgit.kernel.org/stable/c/19657b3a17b774ae4e2f2635b5ae8638c9344a40Refgit.kernel.org/stable/c/3f7a535ff0fa627a0132803e4c2f903ceffcbc1cRefgit.kernel.org/stable/c/8f48cfe657409fb5c7ba0521b14da6d47546d9cfRefgit.kernel.org/stable/c/92185d6f7819bc558939ae83de7b1abe90e3b5c2Refgit.kernel.org/stable/c/9bc9b95aee2b2e3f1301a16a67ee504960402875Refgit.kernel.org/stable/c/a735f9964a3d9ed97daf9b08507f8b5bcafe6326Refgit.kernel.org/stable/c/dac813101914c21219ac221a60a31a11bc90e7ecRefgit.kernel.org/stable/c/dd22f74a09e25ca298ced0a3763ef353242cb78d

How CyberStrike helps

Frequently asked questions

What is CVE-2026-72319?

CVE-2026-72319 is a critical-severity vulnerability. It was published on August 15, 2026 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

How severe is CVE-2026-72319?

This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-72319?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-72319?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-72319 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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