7.5

CVE-2026-78132: strongswan Infinite Loop

CVSS: 7.5v3.1HighAnalyzed
AliasesUBUNTU-CVE-2026-78132DEBIAN-CVE-2026-78132CGA-fxjg-jmqx-4gv7
Published 11-09-2026Last modified 14-09-2026
Open JSON

Vulnerability summary

CVE-2026-78132 is a high (CVSS 7.5) Infinite Loop vulnerability in strongswan. EPSS estimates a 0.32% chance of exploitation in the next 30 days, higher than 23% of scored vulnerabilities.

Overall risk
30/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (CVE.org)
EPSS score
0.32%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 6 · Related 6
OPENSUSE-SU-2026:22050-1SUSE-SU-2026:4115-1SUSE-SU-2026:4143-1SUSE-SU-2026:4146-1SUSE-SU-2026:4152-1USN-8789-1

Timeline

  1. 11-09-2026
    PublishedVulnerability first disclosed.
  2. 14-09-2026
    Last modifiedVulnerability information updated.

Description

strongSwan 5.1.3 through 6.0.7 has an infinite loop in the x509 plugin's attribute certificate parser for ietfAttrSyntax.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.32%

Chance of exploitation in the next 30 days

Percentile

23%

Versus all other CVEs

30-day change

0.00 pp

From 0.32% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.32%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Chainguard1 product
  • py3.13-vici< 6.1.0-r1
Debian1 product
  • strongswanAll versions (No fix recorded) | < 6.0.1-6+deb13u7 | < 6.1.0-1
Strongswan1 product
Ubuntu1 product
  • strongswanAll versions (No fix recorded) | < 5.9.5-2ubuntu2.8 | < 5.9.13-2ubuntu4.24.04.5 | < 6.0.4-1ubuntu3.2
Wolfi1 product
  • py3.13-vici< 6.1.0-r1

5 vendors · 5 products

References

7 links