CVE-2026-46291: crypto: caam - guard HMAC key hex dumps in hash_digest_key

mediumCVSS 5.5CVE-2026-46291

CSIRTS triage

Information disclosure

What: The crypto subsystem's HMAC key hex dumps are not adequately guarded, leading to potential information disclosure.
Who is affected: Users of the crypto subsystem.
Urgency: Remediation is medium urgency due to the potential for sensitive data exposure, with a CVSS score of 5.5.
Action: Apply patches or updates that address CVE-2026-46291.

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

Details

Source: Microsoft Security Response Center (INTL · vendor-psirt · site)
Severity: medium — CVSS 5.5
Published: 2026-06-09
Exploitation: Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-46291

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-2026-462910.12% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 2% of all scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-46291	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

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