CVE-2021-45100
Estado: ModificadaAlta (7.5)—
The ksmbd server through 3.4.2, as used in the Linux kernel through 5.15.8, sometimes communicates in cleartext even though encryption has been enabled. This occurs because it sets the SMB2_GLOBAL_CAP_ENCRYPTION flag when using the SMB 3.1.1 protocol, which is a violation of the SMB protocol specification. When Windows 10 detects this protocol violation, it disables encryption.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- Puntuación base: 7.5
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.88%
- Percentil entre todas las CVEs puntuadas: 58
- 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).
Tecnologías afectadas (9)
CWE
- CWE-319
Referencias
- https://github.com/cifsd-team/ksmbd/issues/550
- https://github.com/cifsd-team/ksmbd/pull/551
- https://marc.info/?l=linux-kernel&m=163961726017023&w=2
- https://security.netapp.com/advisory/ntap-20220107-0001/
- https://github.com/cifsd-team/ksmbd/issues/550
- https://github.com/cifsd-team/ksmbd/pull/551
- https://marc.info/?l=linux-kernel&m=163961726017023&w=2
- https://security.netapp.com/advisory/ntap-20220107-0001/
JSON original (NVD)
Mostrar
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