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CVE-2026-25075
HIGH7.5
Beschreibung
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.
CVE Details
CVSS v3.1 Bewertung7.5
SchweregradHIGH
CVSS VektorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
AngriffsvektorNETWORK
KomplexitatLOW
Erforderliche PrivilegienNONE
BenutzerinteraktionNONE
Veroffentlicht3/23/2026
Zuletzt geandert3/27/2026
Quellenvd
Honeypot-Sichtungen0
Schwachen (CWE)
CWE-191CWE-476
Referenzen
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)
IOC Korrelationen
Keine Korrelationen erfasst
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