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CVE-2026-41991: Predictable Temporary File in GNU gzip

unknownCVE-2026-41991

CSIRTS triage

What
A predictable temporary file vulnerability exists in GNU gzip.
Who is affected
Users of GNU gzip are affected.
Urgency
The urgency is unknown as the severity is not specified.
Action
Monitor for updates regarding this vulnerability.

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Details

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

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-41991

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-2026-41991coverage & exploitation statusNVD · CVE.org

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