Is CVE-2014-9221 in the CISA KEV catalog?

No. CVE-2014-9221 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2014-9221?

CVE-2014-9221 has a CVSS v2 base score of 5.0 (MEDIUM).

What is the EPSS score for CVE-2014-9221?

CVE-2014-9221 has an EPSS score of 3.82% (89th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2014-9221?

Upgrade strongswan on debian 11 to 5.2.1-5 or later. Fixes are available for 3 affected products.

CVE & CISA-KEV Catalog

CVE-2014-9221

MEDIUMEPSS 89th pctl

5.0

CVSS v2

NVD

Description

strongSwan 4.5.x through 5.2.x before 5.2.1 allows remote attackers to cause a denial of service (invalid pointer dereference) via a crafted IKEv2 Key Exchange (KE) message with Diffie-Hellman (DH) group 1025.

CWE-19

How to fix

Remediation Available

strongswanDebian

Fixed in:5.2.1-5CVE-2014-9221

strongswanUbuntu

Fixed in:5.1.2-0ubuntu2.2USN-2450-1

strongswan-ikeUbuntu

Fixed in:5.1.2-0ubuntu2.2USN-2450-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

3.82%probability of exploitation in 30 days

89thpercentile

Elevated risk: more likely to be exploited than 89% of all known CVEs.

References

Vendor Advisory1

strongswan.org

Third-Party Advisory7

Other references3

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-06.