CVE-2025-37789
Estado: ModificadaAlta (7.8)—
In the Linux kernel, the following vulnerability has been resolved:
net: openvswitch: fix nested key length validation in the set() action
It's not safe to access nla_len(ovs_key) if the data is smaller than the netlink header. Check that the attribute is OK first.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Puntuación base: 7.8
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.22%
- Percentil entre todas las CVEs puntuadas: 11
- Fecha de la puntuación: 6/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
🎯 Técnicas ATT&CK
Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.
- Explotación
T1068Exploitation for Privilege Escalationprivilege escalation85 % - Impacto principal
T1499.004Application or System Exploitationimpact75 %
AV:L/PR:L sin UI permite escalada local en kernel. Acceso a memoria no validada en Open vSwitch puede causar DoS (crash) o corrupción de datos de red.
Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.
🛡️ Mitigaciones ATT&CK que cubren estas técnicas
Tecnologías afectadas (2)
CWE
- NVD-CWE-noinfo
Referencias
- https://git.kernel.org/stable/c/03d7262dd53e8c404da35cc81aaa887fd901f76b
- https://git.kernel.org/stable/c/1489c195c8eecd262aa6712761ba5288203e28ec
- https://git.kernel.org/stable/c/54c6957d1123a2032099b9eab51c314800f677ce
- https://git.kernel.org/stable/c/65d91192aa66f05710cfddf6a14b5a25ee554dba
- https://git.kernel.org/stable/c/7fcaec0b2ab8fa5fbf0b45e5512364a168f445bd
- https://git.kernel.org/stable/c/824a7c2df5127b2402b68a21a265d413e78dcad7
- https://git.kernel.org/stable/c/a27526e6b48eee9e2d82efff502c4f272f1a91d4
- https://git.kernel.org/stable/c/be80768d4f3b6fd13f421451cc3fee8778aba8bc
- https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html
- https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html
JSON original (NVD)
Mostrar
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