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CVE-2026-52972: crypto: af_alg - Cap AEAD AD length to 0x80000000

Modified
AliasesUBUNTU-CVE-2026-52972DEBIAN-CVE-2026-52972
Published 24-06-2026Last modified 17-08-2026

Vulnerability summary

CVE-2026-52972 is a high (CVSS 7.0) Integer Overflow or Wraparound vulnerability in linux. EPSS estimates a 0.14% chance of exploitation in the next 30 days, higher than 3.6% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 7, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
7.0/10
010
High · v3.1 (CVE.org)
EPSS score
0.14%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 174 · Related 171
OPENSUSE-SU-2026:11476-1OPENSUSE-SU-2026:21555-1RHSA-2026:72623RHSA-2026:75746RHSA-2026:75747SUSE-SU-2026:22521-1

Showing 100 of 174.

Timeline

  1. 24-06-2026
    PublishedVulnerability first disclosed.
  2. 17-08-2026
    Last modifiedVulnerability information updated.

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.

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

0.14%

Chance of exploitation in the next 30 days

Percentile

4%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.14% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu159 products
  • linuxAll versions (No fix recorded)
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded)
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 400c40cf78da00c16e561a3a253ca272455c42ef, < f8a5203596797f394ff3f9aa4005597a92249802 | ≥ 400c40cf78da00c16e561a3a253ca272455c42ef, < a9f68d9ed38dd6e5a6c6d75b03d25c1c133e321d | ≥ 400c40cf78da00c16e561a3a253ca272455c42ef, < a4fe4eb580bbc7439f649a496d4cf38415a4021c | ≥ 400c40cf78da00c16e561a3a253ca272455c42ef, < e4c4a5074532eaaa14951994a3aad0d479aa7431 | ≥ 400c40cf78da00c16e561a3a253ca272455c42ef, < 265ac26d1c5e17b34d497cbda1f754a1ec8552bc | ≥ 400c40cf78da00c16e561a3a253ca272455c42ef, < a1c5672faf8e93e38c2deac3979cc767ca5cf918 | ≥ 400c40cf78da00c16e561a3a253ca272455c42ef, < 97948906dc8e0ea84775e03e35b60a2063c70193 | ≥ 400c40cf78da00c16e561a3a253ca272455c42ef, < 0b3a57d218618cb1cc78ddc9ba02c07de84b46f4 | ≥ 400c40cf78da00c16e561a3a253ca272455c42ef, < e4c06479d7059888adf2f22bc1ebcf053bf691a2 | 4.1
  • linux_kernel≥ 4.1, < 5.10.258 | ≥ 5.11, < 5.15.209 | ≥ 5.16, < 6.1.175 | ≥ 6.2, < 6.6.141 | ≥ 6.7, < 6.12.91 | ≥ 6.13, < 6.18.33 | ≥ 6.19, < 7.0.10 | ≥ 7.1, < 7.2
Debian1 product
  • linux< 6.1.176-1 | < 6.12.94-1 | < 7.0.10-1

3 vendors · 162 products

References

17 links
Show all 17 references