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CVE-2026-52957: libceph: Fix potential null-ptr-deref in decode_choose_args()

highCVSS 7.5CVE-2026-52957

CSIRTS triage

vendor: libcephproduct: libcephOther
What
There is a potential null pointer dereference in decode_choose_args().
Who is affected
Users of libceph.
Urgency
Remediation is urgent due to a high severity rating of 7.5.
Action
Update libceph to the latest version.

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Details

Source
Microsoft Security Response Center (INTL · vendor-psirt · site)
Severity
high — CVSS 7.5
Published
2026-06-09
Exploitation
Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-52957

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.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2026-52957coverage & exploitation statusNVD · CVE.org

Same CVEs, other sources

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

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