CVE-2026-14164
A remote, anonymous attacker can exploit a vulnerability in libarchive to conduct a denial of service attack.
CSIRTS triage
- What
- A remote attacker can trigger a denial of service condition in libarchive.
- Who is affected
- Applications and services using libarchive for archive processing are vulnerable to remote denial of service.
- Urgency
- Medium severity; denial of service only with remote exploitability.
- Action
- Update libarchive to patched version and test archive processing functionality after update.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Low exploitation risk0.47% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 39% of all EPSS-scored CVEs.
Advisory coverage (5)
- medium[NEW] [medium] libarchive: Vulnerability enables denial of servicecert-bund · 2026-08-24
- unknownUSN-8581-1: libarchive vulnerabilitiesubuntu · 2026-07-21
- unknownMultiple vulnerabilities in Microsoft Azure Linux (July 10, 2026)cert-fr-avis · 2026-07-10
- highCVE-2026-14164: A double free issue has been identified in libarchive's RAR5 reader. During parsing of a speci…nvd · 2026-06-30
- highCVE-2026-14164: Libarchive: double-free vulnerability in rar5 decompression logic via dangling filtered_buf po…msrc · 2026-06-09
External references
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[](https://www.csirts.com/cve/CVE-2026-14164)