CVE-2026-7164: freebsd Uncontrolled Recursion
CVSS: 7.5v3.1HighAnalyzed
Published 30-04-2026Last modified 30-04-2026
Vulnerability summary
CVE-2026-7164 is a high (CVSS 7.5) Uncontrolled Recursion vulnerability in freebsd. EPSS estimates a 0.55% chance of exploitation in the next 30 days, higher than 44.5% of scored vulnerabilities.
CVSS score
7.5/10
010
High · v3.1 (CVE.org)EPSS score
0.55%
0%100%
Low · +0.11 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 30-04-2026PublishedVulnerability first disclosed.
- 30-04-2026Last modifiedVulnerability information updated.
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 metrics
2 scores · 2 sources · 1 versionHigh 7.5Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HSourcesAll 2 agree
- NVDNIST7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.55%
Chance of exploitation in the next 30 days
Percentile
45%
Versus all other CVEs
30-day change
+0.11 pp
From 0.43% on 18-09-2026
18-09-202618-10-2026
EPSS score0.55%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-674Uncontrolled RecursionThe product does not properly control the amount of recursion that takes place, consuming excessive resources, such as allocated memory or the program stack.
- CWE-791Incomplete Filtering of Special ElementsThe product receives data from an upstream component, but does not completely filter special elements before sending it to a downstream component.
Affected systems
Freebsd1 product
- freebsdEOL≥ 15.0-RELEASE, < p7 | ≥ 14.4-RELEASE, < p3 | ≥ 14.3-RELEASE, < p12 | ≥ 13.5-RELEASE, < p13 | 13.5 | 13.5:beta3 | 13.5:p1 | 13.5:p10 | 13.5:p11 | 13.5:p12 | 13.5:p2 | 13.5:p3 | 13.5:p4 | 13.5:p5 | 13.5:p6 | 13.5:p7 | 13.5:p8 | 13.5:p9 | 14.3 | 14.3:p1 | 14.3:p10 | 14.3:p11 | 14.3:p2 | 14.3:p3 | 14.3:p4 | 14.3:p5 | 14.3:p6 | 14.3:p7 | 14.3:p8 | 14.3:p9 | 14.4 | 14.4:p1 | 14.4:p2 | 14.4:rc1 | 15.0 | 15.0:p1 | 15.0:p2 | 15.0:p3 | 15.0:p4 | 15.0:p5 | 15.0:p6
1 vendor · 1 product
References
1 links- security.freebsd.org/advisories/FreeBSD-SA-26:14.pf.ascVendor Advisory