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CVE-2026-46299: hfsplus: fix held lock freed on hfsplus_fill_super()

mediumCVSS 5.5CVE-2026-46299

CSIRTS triage

vendor: nullproduct: hfsplusOther
What
The vulnerability involves a fix related to a held lock being freed.
Who is affected
Deployments using hfsplus are affected.
Urgency
Remediation is medium urgency as it may affect file system stability.
Action
No specific action is provided.

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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-2026-46299

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-2026-46299coverage & exploitation statusNVD · CVE.org

Same CVEs, other sources

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

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