CVE-2025-11964: low-severity vulnerability in The Tcpdump Group libpcap
OOBW in utf_16le_to_utf_8_truncated() in libpcap
Published · Updated
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8Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 1.9epss 0.1%
On Windows only, if libpcap needs to convert a Windows error message to UTF-8 and the message includes characters that UTF-8 represents using 4 bytes, utf_16le_to_utf_8_truncated() can write data beyond the end of the provided buffer.
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:L/A:N
Affected products
The Tcpdump Group · libpcapRelated CVEs — The Tcpdump Group libpcap
In the same product, most dangerous first.
CVE-2026-6554HIGHinfinte loop in libpcap before 1.10.7EPSS 0.4%CVE-2024-8006MEDIUMNULL pointer dereference in libpcap before 1.10.5 with remote packet capture supportEPSS 0.2%CVE-2023-7256MEDIUMDouble-free in libpcap before 1.10.5 with remote packet capture support.EPSS 0.2%CVE-2026-18313MEDIUMrpcapd memory leak in libpcap before 1.10.7EPSS 0.2%CVE-2026-18238MEDIUMOOBR in rpcap client in libpcap before 1.10.7EPSS 0.2%CVE-2026-6244MEDIUMdivision by zero in libpcap before 1.10.7EPSS 0.1%