Description
strongSwan before 5.9.12 has a buffer overflow and possible unauthenticated remote code execution via a DH public value that exceeds the internal buffer in charon-tkm's DH proxy. The earliest affected version is 5.3.0. An attack can occur via a crafted IKE_SA_INIT message.
Published: 2023-12-07
Score: 9.8 Critical
EPSS: 5.3% Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-3663-1 strongswan security update
Debian DSA Debian DSA DSA-5560-1 strongswan security update
Ubuntu USN Ubuntu USN USN-6488-1 strongSwan vulnerability
Ubuntu USN Ubuntu USN USN-6488-2 strongSwan vulnerability
History

Thu, 18 Dec 2025 16:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Tue, 04 Nov 2025 20:30:00 +0000

Type Values Removed Values Added
References

Tue, 04 Nov 2025 18:30:00 +0000


Wed, 16 Jul 2025 13:45:00 +0000

Type Values Removed Values Added
Metrics epss

{'score': 0.1093}

epss

{'score': 0.11192}


Fri, 17 Jan 2025 20:45:00 +0000

Type Values Removed Values Added
References

Subscriptions

Strongswan Strongswan
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2025-12-18T15:29:57.805Z

Reserved: 2023-09-05T00:00:00.000Z

Link: CVE-2023-41913

cve-icon Vulnrichment

Updated: 2025-11-04T19:21:10.660Z

cve-icon NVD

Status : Modified

Published: 2023-12-07T05:15:09.173

Modified: 2025-12-18T16:15:49.970

Link: CVE-2023-41913

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses