CVE record · CVE-2026-23437

net: shaper: protect late read accesses to the hierarchy

CVSS 7.8 HighEPSS 0.0013 · 2nd percentile

Published by the CVE Program (CNA: Linux) at 3 Apr 2026, 15:15 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 4b623f9f0f59652ea71fcb27d60b4c3b65126dbb to before 581eee0890a8bde44f1fb78ad3e70502a897d583 git affected 4b623f9f0f59652ea71fcb27d60b4c3b65126dbb to before 348758ba74e6a348299965b16a97cfb817545cc0 git affected 4b623f9f0f59652ea71fcb27d60b4c3b65126dbb to before 0f9ea7141f365b4f27226898e62220fb98ef8dc6 git Other versions: unaffected
Linux	Linux	affected 6.13 unaffected before 6.13 semver unaffected 6.18.20 to 6.18., inclusive semver unaffected 6.19.10 to 6.19., inclusive semver unaffected 7.0 to *, inclusive original_commit_for_fix Other versions: affected

Identifiers: CVE-2026-23437
CNA: Linux
Weakness (CWE): CWE-662
Tags: Linux kernel
CWE-662
Published: 3 Apr 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

Score	Rating	CVSS	Vector	Source
7.8	High	3.1	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	CNA (Linux)

CISA KEV Not listed.
EPSS 0.0013, the 2nd percentile, on 6 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 3 Apr 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.