MEDIUM 5.5 Microsoft

CVE-2026-31911

abort() in libpcap before 1.10.7 on an invalid BPF opcode

Microsoft Security Update 2026-Sep: abort() in libpcap before 1.10.7 on an invalid BPF opcode

Affected Products

azl3 libpcap 1.10.6-1 on Azure Linux 3.0
azl3 nmap 7.95-4 on Azure Linux 3.0

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-31911
https://nvd.nist.gov/vuln/detail/CVE-2026-31911

Published: 2026-09-08 · Source: Microsoft · Feed updated: 2026-10-20

This medium severity vulnerability with a CVSS score of 5.5 was published on 2026-09-08 via Microsoft. Affected: azl3 libpcap 1.10.6-1 on Azure Linux 3.0, azl3 nmap 7.95-4 on Azure Linux 3.0.

vulnfeed aggregates 18176 vulnerabilities from NVD, CISA KEV, Ubuntu, Debian, Red Hat, Kubernetes, Exploit-DB, OSS-Security, GitHub and OpenStack — updated every 4 hours.