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CVE-2026-53284: btrfs: only release the dirty pages io tree after successful writes

highCVSS 7.5CVE-2026-53284

CSIRTS triage

Other
What
This vulnerability involves releasing dirty pages in the btrfs file system.
Who is affected
Deployments using the affected btrfs code.
Urgency
Remediation is high urgency due to the high severity rating.
Action
Apply the fix for CVE-2026-53284.

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

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-2026-53284

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-2026-53284coverage & exploitation statusNVD · CVE.org

Same CVEs, other sources

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

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