What is CVE-2025-11961?

CVE-2025-11961 is a security advisory published by Microsoft Security Response Center (MSRC) with Low severity. OOBR and OOBW in pcap_ether_aton() in libpcap

Which CVE IDs does CVE-2025-11961 cover?

CVE-2025-11961 covers the following CVE IDs: CVE-2025-11961. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2025-11961?

CVE-2025-11961 has a CVSS v3 base score of 1.9, published by Microsoft Security Response Center (MSRC).

Which products are affected by CVE-2025-11961?

CVE-2025-11961 affects 7 products, including: azl3 libpcap 1.10.5-1 on Azure Linux 3.0; azl3 nmap 7.95-2 on Azure Linux 3.0; azl3 nmap 7.95-3 on Azure Linux 3.0; cbl2 libpcap 1.10.1-4 on CBL Mariner 2.0; cbl2 libpcap 1.10.1-5 on CBL Mariner 2.0; and others — see the full list on the advisory page.

CVE-2025-11961LowCVSS 1.9

OOBR and OOBW in pcap_ether_aton() in libpcap

Vendor

Microsoft Security Response Center (MSRC)

Published

January 3, 2026

Last Modified

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🔗 CVE IDs covered (1)

CVE-2025-11961 →

🎯 Affected products7

azl3 libpcap 1.10.5-1 on Azure Linux 3.0
azl3 nmap 7.95-2 on Azure Linux 3.0
azl3 nmap 7.95-3 on Azure Linux 3.0
cbl2 libpcap 1.10.1-4 on CBL Mariner 2.0
cbl2 libpcap 1.10.1-5 on CBL Mariner 2.0
cbl2 nmap 7.93-3 on CBL Mariner 2.0
cbl2 nmap 7.93-4 on CBL Mariner 2.0

✅ Remediation

KBCBL-Mariner Releases (Security Update) — fixed build 7.95-3 KBCBL-Mariner Releases (Security Update) — fixed build 7.93-4 KBCBL-Mariner Releases (Security Update) — fixed build 1.10.6-1 KBCBL-Mariner Releases (Security Update) — fixed build 1.10.1-5

🔗 References (2)

advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-11961
referencehttps://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade