CVE-2026-52972 — Security Box Score

CVE · referencelatest edition

Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-52972MEDIUM

Linux Linux — crypto: af_alg - Cap AEAD AD length to 0x80000000

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   L   L   L   N  U  N  N  H    5.5   .0014    4.2     —

AFFECTED
  Product  Versions                                    Fixed
  Linux    400c40cf78da00c16e561a3a253ca272455c42ef –  —
  Linux    4.1 –                                       5.10.258

TIMELINE
  Jun 9   Reserved by Linux
  Jun 24  Published (CNA: Linux)
  Aug 17  RESCORED — CVE-2026-52972 (Linux). CVSS 7 → 5.5 (NVD).

CWE-190 · CNA: Linux · CVSS v3.1 · 12 references · NVD status: Modified

Description

In the Linux kernel, the following vulnerability has been resolved: crypto: af_alg - Cap AEAD AD length to 0x80000000 In order to prevent arithmetic overflows when checking the TX buffer size, cap the associated data length to 0x80000000.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
June 9, 2026	Reserved	Reserved by Linux
June 24, 2026	Published	Published (CNA: Linux)
August 17, 2026	RESCORED	RESCORED — CVE-2026-52972 (Linux). CVSS 7 → 5.5 (NVD).

Affected

Affected products and packages — 2 rows
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
Linux	Linux	—	400c40cf78da00c16e561a3a253ca272455c42ef	—
Linux	Linux	—	4.1	5.10.258

Weaknesses

CWE-190

References (12)

https://access.redhat.com/security/cve/CVE-2026-52972 [Third Party Advisory]
https://bugzilla.redhat.com/show_bug.cgi?id=2492364 [Issue Tracking, Third Party Advisory]
https://git.kernel.org/stable/c/0b3a57d218618cb1cc78ddc9ba02c07de84b46f4
https://git.kernel.org/stable/c/265ac26d1c5e17b34d497cbda1f754a1ec8552bc [Patch]
https://git.kernel.org/stable/c/97948906dc8e0ea84775e03e35b60a2063c70193 [Patch]
https://git.kernel.org/stable/c/a1c5672faf8e93e38c2deac3979cc767ca5cf918 [Patch]
https://git.kernel.org/stable/c/a4fe4eb580bbc7439f649a496d4cf38415a4021c [Patch]
https://git.kernel.org/stable/c/a9f68d9ed38dd6e5a6c6d75b03d25c1c133e321d [Patch]
https://git.kernel.org/stable/c/e4c06479d7059888adf2f22bc1ebcf053bf691a2 [Patch]
https://git.kernel.org/stable/c/e4c4a5074532eaaa14951994a3aad0d479aa7431 [Patch]
https://git.kernel.org/stable/c/f8a5203596797f394ff3f9aa4005597a92249802 [Patch]
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-52972.json [Third Party Advisory]

Authoritative record: CVE-2026-52972 at cve.org

Vendors: linux

Weaknesses: CWE-190

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-52972 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.