How severe is CVE-2013-2944?

CVE-2013-2944 has a CVSS 2.0 base score of 4.9, rated medium severity.

Is CVE-2013-2944 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2013-2944?

CVE-2013-2944 primarily affects Strongswan. In total, 17 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2013-2944?

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

When was CVE-2013-2944 published?

CVE-2013-2944 was published on 2013-05-02 and last updated on 2026-06-16.

CVE-2013-2944

CVE-2013-2944 is a medium-severity vulnerability in Strongswan with a CVSS 2.0 base score of 4.9. 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-287.

Key facts

Severity: Medium (CVSS 2.0 base score 4.9)
EPSS exploit prediction: 2% (73rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: Strongswan
Published: 2013-05-02
Last modified: 2026-06-16

Description

strongSwan 4.3.5 through 5.0.3, when using the OpenSSL plugin for ECDSA signature verification, allows remote attackers to authenticate as other users via an invalid signature.

Frequently asked questions

What is CVE-2013-2944?: strongSwan 4.3.5 through 5.0.3, when using the OpenSSL plugin for ECDSA signature verification, allows remote attackers to authenticate as other users via an invalid signature.
How severe is CVE-2013-2944?: CVE-2013-2944 has a CVSS 2.0 base score of 4.9, rated medium severity.
Is CVE-2013-2944 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2013-2944?: CVE-2013-2944 primarily affects Strongswan. In total, 17 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2013-2944?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2013-2944 published?: CVE-2013-2944 was published on 2013-05-02 and last updated on 2026-06-16.

References

Affected products (17)

cpe:2.3:a:strongswan:strongswan:4.3.5:*:*:*:*:*:*:*
cpe:2.3:a:strongswan:strongswan:4.3.6:*:*:*:*:*:*:*
cpe:2.3:a:strongswan:strongswan:4.3.7:*:*:*:*:*:*:*
cpe:2.3:a:strongswan:strongswan:4.4.0:*:*:*:*:*:*:*
cpe:2.3:a:strongswan:strongswan:4.4.1:*:*:*:*:*:*:*
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:*:*:*:*:*:*:*

More vulnerabilities in Strongswan

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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…
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Other CWE-287 (Improper Authentication) vulnerabilities

CVE-2026-45480 — Critical (CVSS 10.0): Improper authentication in Azure Active Directory allows an unauthorized attacker to elevate privileges over a network.
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CVE-2026-10611 — Critical (CVSS 10.0): An authentication bypass vulnerability exists in MISP when LDAP mixed authentication is enabled with OTP enforcement.…
CVE-2026-47280 — Critical (CVSS 10.0): Improper authentication in Azure Resource Manager (ARM) allows an unauthorized attacker to elevate privileges over a…
CVE-2026-42822 — Critical (CVSS 10.0): Improper authentication in Azure Local Disconnected Operations allows an unauthorized attacker to elevate privileges…
CVE-2026-20182 — Critical (CVSS 10.0): May 2026: This security advisory provides the details and fix information for a vulnerability that was discovered and…

Browse all CWE-287 (Improper Authentication) vulnerabilities →