CVE-2025-39789: crypto: x86/aegis - Add missing error checks

mediumCVSS 5.5CVE-2025-39789

CSIRTS triage

vendor: Linux product: Linux kernel Memory corruption

What: Missing error checks in x86 AEGIS cryptographic implementation.
Who is affected: Linux systems using AEGIS encryption on x86 architecture.
Urgency: Medium (CVSS 5.5); error handling gaps may lead to cryptographic failures.
Action: Update to patched Linux kernel version.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source: Microsoft Security Response Center (INTL · vendor-psirt · site)
Severity: medium — CVSS 5.5
Published: 2026-08-06
Exploitation: Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-39789

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Low exploitation riskCVE-2025-397890.13% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 3% of all EPSS-scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2025-39789	coverage & exploitation status	NVD · CVE.org

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