Is CVE-2026-52972 in the CISA KEV catalog?

No. CVE-2026-52972 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-52972?

CVE-2026-52972 has a CVSS v3 base score of 7.8 (Important).

What is the EPSS score for CVE-2026-52972?

CVE-2026-52972 has an EPSS score of 0.14% (4th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-52972?

Upgrade linux on debian 13 to 6.12.94-1 or later.

CVE & CISA-KEV Catalog

CVE-2026-52972

HIGH

7.8

CVSS v3

NVD

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.

CWE-190Integer Overflow

How to fix

Remediation Available

linuxDebian

Fixed in:6.12.94-1CVE-2026-52972

Fixed in:7.0.10-1CVE-2026-52972

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

0.14%probability of exploitation in 30 days

4thpercentile

Low risk: more likely to be exploited than 4% of all known CVEs.

References

Other references11

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-06-30.