CVE-2026-7164CWE-674CWE-791
pf can overflow the stack parsing crafted SCTP packets
High · published April 30, 2026
What it is
Incorrect packet validation allowed unbounded recursion parsing SCTP chunk parameters. This can eventually result in a stack overflow and panic.
Remote attackers can craft packets which cause affected systems to panic. This affects any system where pf is configured to process traffic, independent of the configured ruleset.
The record
Technical detail
- CVSS v3.1
- 7.5 · HIGH
- Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CVSS v4.0
- Not supplied
- EPSS
- 0.00546 · 45.0th percentile
- Weaknesses
- CWE-674 · Uncontrolled Recursion; CWE-791 · Incomplete Filtering of Special Elements
- Published
- 2026-04-30T07:23Z
EPSS history
Timeline