CVE-2026-4887
A flaw was found in GIMP. This issue is a heap buffer over-read in GIMP PCX file loader due to an off-by-one error. A remote attacker could exploit this by convincing a user to open a specially crafted PCX image. Successful exploitation could lead to out-of-bounds memory disclosure and a possible application crash, resulting in a Denial of Service (DoS).
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
- Puntuación base: 7.1
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.55%
- Percentil entre todas las CVEs puntuadas: 44
- 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
T1005Data from Local Systemcollection85 % - Impacto secundario
T1499.004Application or System Exploitationimpact80 %
Vector CVSS con AV:L y UI:R (abrir fichero PCX preparado) indica ejecución en cliente T1203. La vulnerabilidad causa lectura de memoria (buffer over-read) e impacto en disponibilidad (crash/DoS).
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-193
Referencias
- https://access.redhat.com/errata/RHSA-2026:16484
- https://access.redhat.com/errata/RHSA-2026:17533
- https://access.redhat.com/errata/RHSA-2026:19362
- https://access.redhat.com/errata/RHSA-2026:20552
- https://access.redhat.com/errata/RHSA-2026:20553
- https://access.redhat.com/errata/RHSA-2026:20554
- https://access.redhat.com/errata/RHSA-2026:20691
- https://access.redhat.com/errata/RHSA-2026:25899
- https://access.redhat.com/errata/RHSA-2026:25901
- https://access.redhat.com/errata/RHSA-2026:25907
- https://access.redhat.com/errata/RHSA-2026:26168
- https://access.redhat.com/security/cve/CVE-2026-4887
- https://bugzilla.redhat.com/show_bug.cgi?id=2451669
- https://gitlab.gnome.org/GNOME/gimp/-/issues/15960
JSON original (NVD)
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