CVE-2025-11964

LOW

libpcap - Buffer Overflow

Title source: llm
STIX 2.1

Description

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.

Scores

CVSS v3 1.9
EPSS 0.0002
EPSS Percentile 5.8%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:L/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-787
Status published
Products (1)
The Tcpdump Group/libpcap 1.10.0 - 1.10.6
Published Dec 31, 2025
Tracked Since Feb 18, 2026