CVE-2026-64881: The audit file upload handler does not sanitize filenames, allowing shell metacharacters to flow into system command execution. This input validation failure enables command inject

highCVSS 8.8CVE-2026-64881

The audit file upload handler does not sanitize filenames, allowing shell metacharacters to flow into system command execution. This input validation failure enables command injection when chained with a related vulnerability.

Details

Source: NVD Recent CVEs (US · database · site)
Severity: high — CVSS 8.8
Published: 2026-07-21
Last updated: 2026-07-24
Exploitation: Not in CISA KEV at last sync

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-64881

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.

Moderate exploitation riskCVE-2026-648811.4% 30-day exploitation probability. Patch within normal cadence, watch for KEV listing. Riskier than 71% of all scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-64881	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 Tenable Security Center (July 21, 2026)cert-fr-avis

CVE-2026-64881: The audit file upload handler does not sanitize filenames, allowing shell metacharacters to flow into system command execution. This input validation failure enables command inject

Details

Exploitation outlook

Referenced CVEs

Same CVEs, other sources

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