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High severity7.5NVD Advisory· Published Mar 9, 2026· Updated Jun 17, 2026

CVE-2025-14769

CVE-2025-14769

Description

In some cases, the tcp-setmss handler may free the packet data and throw an error without halting the rule processing engine. A subsequent rule can then allow the traffic after the packet data is gone, resulting in a NULL pointer dereference.

Maliciously crafted packets sent from a remote host may result in a Denial of Service (DoS) if the tcp-setmss directive is used and a subsequent rule would allow the traffic to pass.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

17
  • FreeBSD/FreeBSD16 versions
    cpe:2.3:o:freebsd:freebsd:13.5:-:*:*:*:*:*:*+ 15 more
    • cpe:2.3:o:freebsd:freebsd:13.5:-:*:*:*:*:*:*
    • cpe:2.3:o:freebsd:freebsd:13.5:p1:*:*:*:*:*:*
    • cpe:2.3:o:freebsd:freebsd:13.5:p2:*:*:*:*:*:*
    • cpe:2.3:o:freebsd:freebsd:13.5:p3:*:*:*:*:*:*
    • cpe:2.3:o:freebsd:freebsd:13.5:p4:*:*:*:*:*:*
    • cpe:2.3:o:freebsd:freebsd:13.5:p5:*:*:*:*:*:*
    • cpe:2.3:o:freebsd:freebsd:13.5:p6:*:*:*:*:*:*
    • cpe:2.3:o:freebsd:freebsd:13.5:p7:*:*:*:*:*:*
    • cpe:2.3:o:freebsd:freebsd:14.3:-:*:*:*:*:*:*
    • cpe:2.3:o:freebsd:freebsd:14.3:p1:*:*:*:*:*:*
    • cpe:2.3:o:freebsd:freebsd:14.3:p2:*:*:*:*:*:*
    • cpe:2.3:o:freebsd:freebsd:14.3:p3:*:*:*:*:*:*
    • cpe:2.3:o:freebsd:freebsd:14.3:p4:*:*:*:*:*:*
    • cpe:2.3:o:freebsd:freebsd:14.3:p5:*:*:*:*:*:*
    • cpe:2.3:o:freebsd:freebsd:14.3:p6:*:*:*:*:*:*
    • (no CPE)range: 14.3-RELEASE
  • FreeBSD/ipfwllm-fuzzy

Patches

Vulnerability mechanics

References

1

News mentions

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