CVE record · CVE-2026-97568

mptcp: syncookies: remember the request backup flag

No CVSS scoreEPSS 0.0022 · 12th percentile

Published by the CVE Program (CNA: Linux) at 25 Sept 2026, 10:21 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
Vendor	Product	Versions
Linux	Linux	affected 1008f2bcbc8e461c1df3aebba30ac4f616ebe570 to before c97fa2c7ada82d4cac1c6c00643238dc4c462f15 git affected 6f01f41b6a492ddf2da7609967cfaf57e7ca48a7 to before 1668b34452009d27be3262646de748a3e48ffd51 git affected 09176f80995105c62939728fbad5c437d61e7ff4 to before b138e7dc719f0a3949de8bb6500b8cf1604eea06 git affected 8ed3e34c766e8264d5d2e0436f86c51604d6a8a7 to before 360d99258a6402cb8e49771460944f19f04d25b7 git affected efd340bf3d7779a3a8ec954d8ec0fb8a10f24982 to before 61178d0b85b4b1b53e78b06e89d018d22d102f88 git affected efd340bf3d7779a3a8ec954d8ec0fb8a10f24982 to before 00b2bd518911e0daab00f4749cce68c191ccebb4 git affected efd340bf3d7779a3a8ec954d8ec0fb8a10f24982 to before 06d649f9cd03a9f8e768a658b20acf8d2c8022e0 git affected efd340bf3d7779a3a8ec954d8ec0fb8a10f24982 to before b76c0e28b392620dfbaf92cdeedbf115820b44cb git affected 73e2baa301ee3f62ff971e68877adeb37f98cc67 git affected 5.10.224 to before 5.10.271 semver affected 5.15.165 to before 5.15.222 semver affected 6.1.104 to before 6.1.189 semver and 2 more Other versions: unaffected
Linux	Linux	affected 6.11 unaffected before 6.11 semver unaffected 5.10.271 to 5.10., inclusive semver unaffected 5.15.222 to 5.15., inclusive semver unaffected 6.1.189 to 6.1., inclusive semver unaffected 6.6.158 to 6.6., inclusive semver unaffected 6.12.111 to 6.12., inclusive semver unaffected 6.18.53 to 6.18., inclusive semver unaffected 7.2.7 to 7.2., inclusive semver unaffected 7.3 to , inclusive original_commit_for_fix Other versions: affected

Identifiers: CVE-2026-97568
CNA: Linux
Tags: Linux kernel
Published: 25 Sept 2026
Updated: 19 Oct 2026

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

No source has published a CVSS score for this record yet.

CISA KEV Not listed.
EPSS 0.0022, the 12th percentile, on 12 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 25 Sept 2026. New records show when each source confirmed them.

Sources

References from the CNA

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.