OOBW in utf_16le_to_utf_8_truncated() in libpcap_CVE-2025-11964

1.9 / 10

LOW

CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:L/A:N

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.

Basic Information

ID CVE-2025-11964

Source Tcpdump

Published Dec 31, 2025 at 00:58

Affected Product

Vendor The Tcpdump Group

Product libpcap

Version 1.10.0

Affected Versions The Tcpdump Group libpcap 1.10.0

CWE Classification

CWE-787

References

github.com /the-tcpdump-group/libpcap/commit/7fabf607f2319a36a0bd78444247180acb838e69

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    "lastseen": "",
    "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.",
    "published": "2025-12-31T00:58:19.026Z",
    "modified": "2025-12-31T00:58:19.026Z",
    "type": "cve",
    "title": "OOBW in utf_16le_to_utf_8_truncated() in libpcap",
    "source": "Tcpdump",
    "references": "https://github.com/the-tcpdump-group/libpcap/commit/7fabf607f2319a36a0bd78444247180acb838e69",
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        "version": "3.1"
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