CVE-2026-52936: crypto: jitterentropy - replace long-held spinlock with mutex

mediumCVSS 5.5CVE-2026-52936

CSIRTS triage

product: cryptoOther

What: The advisory does not provide specific details about the vulnerability.
Who is affected: Users of the crypto library.
Urgency: Remediation is important due to the medium severity.
Action: Consult the relevant security updates for the crypto library.

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

⚡ Watch crypto

Get an email when a new crypto advisory drops — max one per day, one-click unsubscribe.

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-2026-52936

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-2026-529360.11% 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-2026-52936	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

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

unknownMultiple vulnerabilities in Microsoft Azure Linux (July 10, 2026)cert-fr-avis
high[UPDATE] [high] Linux Kernel: Multiple vulnerabilitiescert-bund

Recent advisories for crypto

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

medium[UPDATE] [medium] Golang Go-Module (Net, Image, Crypto): Multiple Vulnerabilitiescert-bund · 2026-07-10
lowCVE-2026-14935: A logic vulnerability was found in GStreamer's webrtcbin component. The _check_sdp_crypto() fu…nvd · 2026-07-07
unknownCVE-2026-53302: In the Linux kernel, the following vulnerability has been resolved: crypto: eip93 - fix hmac s…nvd · 2026-06-26
highCVE-2026-53016: crypto: ccp - copy IV using skcipher ivsizemsrc · 2026-06-09
mediumCVE-2026-46291: crypto: caam - guard HMAC key hex dumps in hash_digest_keymsrc · 2026-06-09
mediumCVE-2026-53046: ksmbd: fix use-after-free from async crypto on Qualcomm crypto enginemsrc · 2026-06-09