CVE-2026-34982
Estado: ModificadaAlta (8.2)—
Vim is an open source, command line text editor. Prior to version 9.2.0276, a modeline sandbox bypass in Vim allows arbitrary OS command execution when a user opens a crafted file. The `complete`, `guitabtooltip` and `printheader` options are missing the `P_MLE` flag, allowing a modeline to be executed. Additionally, the `mapset()` function lacks a `check_secure()` call, allowing it to be abused from sandboxed expressions. Commit 9.2.0276 fixes the issue.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
- Puntuación base: 8.2
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.27%
- Percentil entre todas las CVEs puntuadas: 18
- Fecha de la puntuación: 5/10/2026
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
T1203Exploitation for Client Executionexecution95 % - Impacto principal
T1059Command and Scripting Interpreterexecution90 % - Impacto secundario
T1068Exploitation for Privilege Escalationprivilege escalation75 %
Requiere interacción del usuario (UI:R) al abrir archivo preparado. Sandbox bypass en modeline permite ejecución de comandos arbitrarios del sistema operativo, con escalada potencial (S:C, C:H, I:H).
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 (1)
CWE
- CWE-78
- CWE-78
Referencias
- https://github.com/vim/vim/commit/75661a66a1db1e1f3f1245c615
- https://github.com/vim/vim/releases/tag/v9.2.0276
- https://github.com/vim/vim/security/advisories/GHSA-8h6p-m6gr-mpw9
- http://www.openwall.com/lists/oss-security/2026/04/01/1
- https://access.redhat.com/errata/RHSA-2026:11389
- https://access.redhat.com/errata/RHSA-2026:11509
- https://access.redhat.com/errata/RHSA-2026:11510
- https://access.redhat.com/errata/RHSA-2026:19073
- https://access.redhat.com/errata/RHSA-2026:19224
- https://access.redhat.com/errata/RHSA-2026:21275
- https://access.redhat.com/errata/RHSA-2026:22634
- https://access.redhat.com/errata/RHSA-2026:28049
- https://access.redhat.com/errata/RHSA-2026:28050
- https://access.redhat.com/errata/RHSA-2026:28133
- https://access.redhat.com/errata/RHSA-2026:30078
- https://access.redhat.com/errata/RHSA-2026:30087
- https://access.redhat.com/errata/RHSA-2026:30088
- https://access.redhat.com/errata/RHSA-2026:30089
- https://access.redhat.com/errata/RHSA-2026:30900
- https://access.redhat.com/errata/RHSA-2026:33453
- https://access.redhat.com/errata/RHSA-2026:34476
- https://access.redhat.com/errata/RHSA-2026:34477
- https://access.redhat.com/errata/RHSA-2026:36004
- https://access.redhat.com/errata/RHSA-2026:36005
- https://access.redhat.com/errata/RHSA-2026:36006
- https://access.redhat.com/errata/RHSA-2026:56786
- https://access.redhat.com/errata/RHSA-2026:56853
- https://access.redhat.com/errata/RHSA-2026:56911
- https://access.redhat.com/errata/RHSA-2026:57402
- https://access.redhat.com/errata/RHSA-2026:57483
- https://access.redhat.com/errata/RHSA-2026:58981
- https://access.redhat.com/errata/RHSA-2026:59831
- https://access.redhat.com/errata/RHSA-2026:60019
- https://access.redhat.com/errata/RHSA-2026:65839
- https://access.redhat.com/errata/RHSA-2026:68711
- https://access.redhat.com/security/cve/CVE-2026-34982
- https://bugzilla.redhat.com/show_bug.cgi?id=2455400
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-34982.json
JSON original (NVD)
Mostrar
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