CVE-2026-7164

HIGH
Published Apr 30, 2026 Modified May 1, 2026 CWE-674 CWE-791

Description

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.

CVSS v3.1 Score

7.5
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS — Exploit Prediction

0.0006
Probability of exploitation
0.19%
Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-674 CWE-674
CWE-791 CWE-791

Affected Products

Vendor Product
freebsd freebsd
freebsd freebsd
freebsd freebsd
freebsd freebsd
freebsd freebsd
freebsd freebsd
freebsd freebsd
freebsd freebsd
freebsd freebsd
freebsd freebsd
freebsd freebsd
freebsd freebsd
freebsd freebsd
freebsd freebsd
freebsd freebsd
freebsd freebsd
freebsd freebsd
freebsd freebsd
freebsd freebsd
freebsd freebsd
freebsd freebsd
freebsd freebsd
freebsd freebsd
freebsd freebsd
freebsd freebsd
freebsd freebsd
freebsd freebsd
freebsd freebsd
freebsd freebsd
freebsd freebsd
freebsd freebsd
freebsd freebsd
freebsd freebsd
freebsd freebsd
freebsd freebsd
freebsd freebsd
freebsd freebsd

References

Frequently Asked Questions

What is CVE-2026-7164? +
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. It has a CVSS v3.1 base score of 7.5 (HIGH).
How severe is CVE-2026-7164? +
CVE-2026-7164 has a CVSS v3.1 score of 7.5 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching. The EPSS score is 0.0006, placing it in the 0th percentile for exploitation probability.
What products are affected by CVE-2026-7164? +
CVE-2026-7164 affects products from freebsd, specifically: freebsd. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2026-7164? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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