CVE-2023-41913

Published Dec 7, 2023 CVSS 3.1 · 9.8 Critical EPSS 2.3% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

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
Type Values Removed Values Added
Metrics ssvc

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

Type Values Removed Values Added
Metrics epss

{'score': 0.1093}

epss

{'score': 0.11192}

Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Dec 18, 2025, 3:29 PM
Reserved
Sep 5, 2023, 12:00 AM
Status
Modified
Published
Dec 7, 2023, 5:15 AM
Modified
Jun 17, 2026, 6:23 AM