How severe is CVE-2014-9221?

CVE-2014-9221 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2014-9221 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (89th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2014-9221?

CVE-2014-9221 primarily affects Strongswan. In total, 25 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2014-9221?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2014-9221 published?

CVE-2014-9221 was published on 2015-01-07 and last updated on 2026-06-17.

CVE-2014-9221

CVE-2014-9221 is a medium-severity vulnerability in Strongswan with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-19.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 4% (89th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-19
Affected product: Strongswan
Published: 2015-01-07
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2014-9221?: 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.
How severe is CVE-2014-9221?: CVE-2014-9221 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2014-9221 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (89th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2014-9221?: CVE-2014-9221 primarily affects Strongswan. In total, 25 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2014-9221?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2014-9221 published?: CVE-2014-9221 was published on 2015-01-07 and last updated on 2026-06-17.

References

Affected products (25)

cpe:2.3:a:strongswan:strongswan:4.5.0:*:*:*:*:*:*:*
cpe:2.3:a:strongswan:strongswan:4.5.1:*:*:*:*:*:*:*
cpe:2.3:a:strongswan:strongswan:4.5.2:*:*:*:*:*:*:*
cpe:2.3:a:strongswan:strongswan:4.5.3:*:*:*:*:*:*:*
cpe:2.3:a:strongswan:strongswan:4.6.0:*:*:*:*:*:*:*
cpe:2.3:a:strongswan:strongswan:4.6.1:*:*:*:*:*:*:*
cpe:2.3:a:strongswan:strongswan:4.6.2:*:*:*:*:*:*:*
cpe:2.3:a:strongswan:strongswan:4.6.3:*:*:*:*:*:*:*
cpe:2.3:a:strongswan:strongswan:4.6.4:*:*:*:*:*:*:*
cpe:2.3:a:strongswan:strongswan:5.0.0:*:*:*:*:*:*:*
cpe:2.3:a:strongswan:strongswan:5.0.1:*:*:*:*:*:*:*
cpe:2.3:a:strongswan:strongswan:5.0.2:*:*:*:*:*:*:*
cpe:2.3:a:strongswan:strongswan:5.0.3:*:*:*:*:*:*:*
cpe:2.3:a:strongswan:strongswan:5.0.4:*:*:*:*:*:*:*
cpe:2.3:a:strongswan:strongswan:5.1.0:*:*:*:*:*:*:*
cpe:2.3:a:strongswan:strongswan:5.1.1:*:*:*:*:*:*:*
cpe:2.3:a:strongswan:strongswan:5.1.2:*:*:*:*:*:*:*
cpe:2.3:a:strongswan:strongswan:5.1.3:*:*:*:*:*:*:*
cpe:2.3:a:strongswan:strongswan:5.2.0:*:*:*:*:*:*:*
cpe:2.3:o:opensuse:opensuse:13.1:*:*:*:*:*:*:*
cpe:2.3:o:opensuse:opensuse:13.2:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:14.10:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:21:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*

More vulnerabilities in Strongswan

CVE-2004-0590 — Critical (CVSS 10.0): FreeS/WAN 1.x and 2.x, and other related products including superfreeswan 1.x, openswan 1.x before 1.0.6, openswan 2.x…
CVE-2023-41913 — Critical (CVSS 9.8): strongSwan before 5.9.12 has a buffer overflow and possible unauthenticated remote code execution via a DH public value…
CVE-2023-26463 — Critical (CVSS 9.8): strongSwan 5.9.8 and 5.9.9 potentially allows remote code execution because it uses a variable named "public" for two…
CVE-2015-3991 — Critical (CVSS 9.8): strongSwan 5.2.2 and 5.3.0 allows remote attackers to cause a denial of service (daemon crash) or execute arbitrary…
CVE-2021-45079 — Critical (CVSS 9.1): In strongSwan before 5.9.5, a malicious responder can send an EAP-Success message too early without actually…
CVE-2022-4967 — High (CVSS 7.7): strongSwan versions 5.9.2 through 5.9.5 are affected by authorization bypass through improper validation of certificate…

All CVEs affecting Strongswan →

Other CWE-19 vulnerabilities

CVE-2015-2373 — Critical (CVSS 10.0): The Remote Desktop Protocol (RDP) server service in Microsoft Windows 7 SP1, Windows 8, and Windows Server 2012 allows…
CVE-2014-8822 — Critical (CVSS 10.0): IOHIDFamily in Apple OS X before 10.10.2 allows attackers to execute arbitrary code in a kernel context or cause a…
CVE-2014-8817 — Critical (CVSS 10.0): coresymbolicationd in CoreSymbolication in Apple OS X before 10.10.2 does not verify that expected data types are…
CVE-2014-4488 — Critical (CVSS 10.0): IOHIDFamily in Apple iOS before 8.1.3, Apple OS X before 10.10.2, and Apple TV before 7.0.3 does not properly validate…
CVE-2014-7247 — Critical (CVSS 10.0): Unspecified vulnerability in JustSystems Ichitaro 2008 through 2011; Ichitaro Government 6, 7, 2008, 2009, and 2010;…
CVE-1999-0226 — Critical (CVSS 10.0): Windows NT TCP/IP processes fragmented IP packets improperly, causing a denial of service.

Browse all CWE-19 vulnerabilities →