PT-2025-51803 · Freebsd · Freebsd

Published 2025-12-16 · Updated 2026-03-09 · CVE-2025-14769

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions ipfw versions (affected versions not specified)

Description The tcp-setmss handler may free packet data and generate an error without stopping rule processing. A subsequent rule could then allow traffic to pass after the packet data is removed, leading to a NULL pointer dereference. Maliciously crafted packets from a remote host could cause a Denial of Service (DoS) if the tcp-setmss directive is used and a following rule permits the traffic. The vulnerable component is the tcp-setmss directive.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

DoS

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

CVE-2025-14769

FREEBSD-SA-25_11

Affected Products

Freebsd

References · 7

• https://security.freebsd.org/advisories/FreeBSD-SA-25:11.ipfw.asc · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-14769 · Security Note
• https://reddit.com/r/freebsd/comments/1pol93z/20251216_freebsd_errata_notices_and_security · Reddit Post
• https://freebsd.org/security/advisories/FreeBSD-SA-25:11.ipfw.asc · Note
• https://t.me/CVEtracker/46897 · Telegram Post
• https://t.me/cveNotify/154773 · Telegram Post
• https://twitter.com/CVEnew/status/2031122539246743905 · Twitter Post