What is CVE-2022-40617?

CVE-2022-40617 is a high-severity vulnerability in Stormshield Network Security, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2022-10-31.

How severe is CVE-2022-40617?

High severity. CVSS v3 base score is 7.5 out of 10.

Resource exhaustion in Stormshield Network Security

CVE-2022-40617

strongSwan before 5.9.8 allows remote attackers to cause a denial of service in the revocation plugin by sending a crafted end-entity (and intermediate CA) certificate that contains a CRL/OCSP URL that points to a server (under the attacker's control) that doesn't properly respond but (for example) just does nothing after the initial TCP handshake, or sends an excessive amount of application data.

Vulnerability class: DoS (Denial of Service)

Published 2022-10-31 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.018 (77.6th percentile), scored 2026-10-21.

Low probability of exploitation in the next 30 days, but still tracked. 78th percentile — 77.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.017 · newest: 0.018 · change: +0.000

Affected products

Stormshield Network Security
Strongswan
Canonical Ubuntu Linux — versions 14.04, 16.04, 18.04
Debian Linux — versions 10.0, 11.0
Fedoraproject Fedora — versions 37

Weakness classification (CWE)

CWE-400 — Uncontrolled Resource Consumption

References

Frequently asked questions

What is CVE-2022-40617?: CVE-2022-40617 is a high-severity vulnerability in Stormshield Network Security, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2022-10-31.
How severe is CVE-2022-40617?: High severity. CVSS v3 base score is 7.5 out of 10.