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CVE-2026-25075

HIGH

7.5

Descripcion

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 length fields during IKEv2 authentication. Attackers can exploit the failure to validate AVP length fields before subtraction to trigger excessive memory allocation or NULL pointer dereference, crashing the charon IKE daemon.

Detalles CVE

Puntuacion CVSS v3.17.5

SeveridadHIGH

Vector CVSSCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Vector de ataqueNETWORK

ComplejidadLOW

Privilegios requeridosNONE

Interaccion usuarioNONE

Publicado3/23/2026

Ultima modificacion3/27/2026

Fuentenvd

Avistamientos honeypot0

Debilidades (CWE)

CWE-191CWE-476

Referencias

https://www.strongswan.org/blog/2026/03/23/strongswan-6.0.5-released.html(disclosure@vulncheck.com)

https://www.strongswan.org/blog/2026/03/23/strongswan-vulnerability-(cve-2026-25075).html(disclosure@vulncheck.com)

https://www.vulncheck.com/advisories/strongswan-eap-ttls-avp-parsing-integer-underflow(disclosure@vulncheck.com)

https://lists.debian.org/debian-lts-announce/2026/03/msg00016.html(af854a3a-2127-422b-91ae-364da2661108)

Correlaciones IOC

Sin correlaciones registradas

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