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ALPINE-CVE-2021-45079

ALPINE-CVE-2021-45079 PUBLISHED CVSS 9.100000381469727 CRITICAL

In strongSwan before 5.9.5, a malicious responder can send an EAP-Success message too early without actually authenticating the client and (in the case of EAP methods with mutual authentication and EAP-only authentication for IKEv2) even without server authentication.

Risk Scores

CVSS v3.1
9.100000381469727
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Affected Products

VendorProductVersions
Alpine:v3.19strongswan5.3.3-r0, 4.5.2-r0, 4.6.1-r0
Alpine:v3.13strongswan5.9.1-r0, 0, 4.6.1-r0
Alpine:v3.17strongswan4.6.1-r0, 5.9.1-r3, 5.9.1-r2
Alpine:v3.18strongswan0, 5.3.5-r1, 5.3.5-r2
Alpine:v3.23strongswan5.7.2-r1, 0, 4.5.2-r0
Alpine:v3.14strongswan5.3.4-r0, 5.8.0-r0, 5.7.2-r1
Alpine:v3.16strongswan5.5.0-r0, 5.3.5-r2, 5.3.5-r1
Alpine:v3.20strongswan5.8.0-r1, 5.8.1-r0, 5.8.1-r1
Alpine:v3.15strongswan5.8.0-r1, 5.8.1-r0, 5.8.1-r1
Alpine:v3.21strongswan5.3.1-r2, 5.3.0-r2, 5.3.0-r1
Alpine:v3.22strongswan0, 5.8.1-r0, 5.8.1-r1

Timeline

  • Jan 31, 2022 CVE Published
  • Dec 3, 2025 CVE Updated
  • Apr 30, 2026 Distribution Patch
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