CVE-2026-35535
Estado: ModificadaAlta (7.8)—
In Sudo through 1.9.17p2 before 3e474c2, a failure of a setuid, setgid, or setgroups call, during a privilege drop before running the mailer, is not a fatal error and can lead to privilege escalation.
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: 0.18%
- Percentil entre todas las CVEs puntuadas: 7
- 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 escalation95 % - Impacto principal
T1078.003Local Accountsstealth · persistence · privilege escalation · initial access85 % - Impacto secundario
T1059Command and Scripting Interpreterexecution80 %
Vulnerabilidad en sudo con AV:L, PR:L, UI:N que permite escalada de privilegios por fallo en llamadas setuid/setgid (CWE-271/272). Conseguiría acceso como root/administrador y ejecución de comandos arbitrarios.
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
- CWE-271
- CWE-272
Referencias
- https://bugs.debian.org/1130593
- https://bugs.launchpad.net/ubuntu/+source/sudo/+bug/2143042
- https://github.com/sudo-project/sudo/commit/3e474c2f201484be83d994ae10a4e20e8c81bb69
- https://www.qualys.com/2026/03/10/crack-armor.txt
- https://lists.debian.org/debian-lts-announce/2026/06/msg00003.html
- https://access.redhat.com/errata/RHSA-2026:10758
- https://access.redhat.com/errata/RHSA-2026:11521
- https://access.redhat.com/errata/RHSA-2026:12310
- https://access.redhat.com/errata/RHSA-2026:13731
- https://access.redhat.com/errata/RHSA-2026:13888
- https://access.redhat.com/errata/RHSA-2026:13889
- https://access.redhat.com/errata/RHSA-2026:13891
- https://access.redhat.com/errata/RHSA-2026:13892
- https://access.redhat.com/errata/RHSA-2026:13895
- https://access.redhat.com/errata/RHSA-2026:13896
- https://access.redhat.com/errata/RHSA-2026:14228
- https://access.redhat.com/errata/RHSA-2026:14437
- https://access.redhat.com/errata/RHSA-2026:19067
- https://access.redhat.com/errata/RHSA-2026:19220
- https://access.redhat.com/errata/RHSA-2026:20040
- https://access.redhat.com/errata/RHSA-2026:20087
- https://access.redhat.com/errata/RHSA-2026:21275
- https://access.redhat.com/errata/RHSA-2026:21656
- https://access.redhat.com/errata/RHSA-2026:21690
- https://access.redhat.com/errata/RHSA-2026:21695
- https://access.redhat.com/errata/RHSA-2026:23233
- https://access.redhat.com/errata/RHSA-2026:28887
- https://access.redhat.com/errata/RHSA-2026:30088
- https://access.redhat.com/errata/RHSA-2026:34098
- https://access.redhat.com/errata/RHSA-2026:58981
- https://access.redhat.com/security/cve/CVE-2026-35535
- https://bugzilla.redhat.com/show_bug.cgi?id=2454714
- https://cert-portal.siemens.com/productcert/html/ssa-253495.html
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-35535.json
JSON original (NVD)
Mostrar
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