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CVE-2026-35334

Medium priority

Some fixes available 3 of 7

Possible NULL-Pointer Dereference in RSA Decryption

1 affected package

strongswan

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
strongswan Fixed Fixed Needs evaluation Needs evaluation
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CVE-2026-35333

Medium priority

Some fixes available 3 of 7

Integer Underflow When Handling RADIUS Attributes

1 affected package

strongswan

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
strongswan Fixed Fixed Needs evaluation Needs evaluation
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CVE-2026-35332

Medium priority

Some fixes available 3 of 7

NULL-Pointer Dereference When Handling ECDH Public Value in TLS

1 affected package

strongswan

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
strongswan Fixed Fixed Needs evaluation Needs evaluation
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CVE-2026-35331

Medium priority

Some fixes available 3 of 7

Accepting Certificates Violating Name Constraints

1 affected package

strongswan

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
strongswan Fixed Fixed Needs evaluation Needs evaluation
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CVE-2026-35330

Medium priority

Some fixes available 3 of 7

Integer Underflow When Handling EAP-SIM/AKA Attributes

1 affected package

strongswan

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
strongswan Fixed Fixed Needs evaluation Needs evaluation
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CVE-2026-35329

Medium priority

Some fixes available 3 of 7

NULL-Pointer Dereference When Processing Padding in PKCS#7

1 affected package

strongswan

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
strongswan Fixed Fixed Needs evaluation Needs evaluation
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CVE-2026-35328

Medium priority

Some fixes available 3 of 7

Infinite Loop When Handling Supported Versions TLS Extension

1 affected package

strongswan

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
strongswan Fixed Fixed Needs evaluation Needs evaluation
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CVE-2026-25075

Medium priority

Some fixes available 3 of 7

strongSwan versions 4.5.0 prior to 6.0.5 contain an integer underflow vulnerability in the EAP-TTLS AVP parser that allows unauthenticated remote attackers to cause a denial of service by sending crafted AVP data with invalid...

1 affected package

strongswan

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
strongswan Fixed Fixed Needs evaluation Needs evaluation
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CVE-2025-62291

Medium priority

Some fixes available 4 of 8

In the eap-mschapv2 plugin (client-side) in strongSwan before 6.0.3, a malicious EAP-MSCHAPv2 server can send a crafted message of size 6 through 8, and cause an integer underflow that potentially results in a heap-based buffer overflow.

1 affected package

strongswan

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
strongswan Fixed Fixed Needs evaluation Needs evaluation
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CVE-2022-4967

Medium priority
Fixed

strongSwan versions 5.9.2 through 5.9.5 are affected by authorization bypass through improper validation of certificate with host mismatch (CWE-297). When certificates are used to authenticate clients in TLS-based EAP methods, the...

1 affected package

strongswan

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
strongswan Not affected Fixed Not affected Not affected
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