CVE-2025-9900
Estado: AplazadaAlta (8.8)—
A flaw was found in Libtiff. This vulnerability is a "write-what-where" condition, triggered when the library processes a specially crafted TIFF image file.
By providing an abnormally large image height value in the file's metadata, an attacker can trick the library into writing attacker-controlled color data to an arbitrary memory location. This memory corruption can be exploited to cause a denial of service (application crash) or to achieve arbitrary code execution with the permissions of the user.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- Puntuación base: 8.8
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.97%
- Percentil entre todas las CVEs puntuadas: 61
- 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 Executionexecution85 % - Impacto principal
T1059Command and Scripting Interpreterexecution80 % - Impacto secundario
T1499.004Application or System Exploitationimpact75 %
TIFF malicioso requiere interacción del usuario (UI:R). Write-what-where permite ejecución de código arbitrario o crash de aplicación (DoS por corrupción de memoria).
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)
⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.
CWE
- CWE-123
Referencias
- https://access.redhat.com/errata/RHSA-2025:17651
- https://access.redhat.com/errata/RHSA-2025:17675
- https://access.redhat.com/errata/RHSA-2025:17710
- https://access.redhat.com/errata/RHSA-2025:17738
- https://access.redhat.com/errata/RHSA-2025:17739
- https://access.redhat.com/errata/RHSA-2025:17740
- https://access.redhat.com/errata/RHSA-2025:19113
- https://access.redhat.com/errata/RHSA-2025:19156
- https://access.redhat.com/errata/RHSA-2025:19276
- https://access.redhat.com/errata/RHSA-2025:19906
- https://access.redhat.com/errata/RHSA-2025:19947
- https://access.redhat.com/errata/RHSA-2025:20956
- https://access.redhat.com/errata/RHSA-2025:20998
- https://access.redhat.com/errata/RHSA-2025:21060
- https://access.redhat.com/errata/RHSA-2025:21061
- https://access.redhat.com/errata/RHSA-2025:21062
- https://access.redhat.com/errata/RHSA-2025:21407
- https://access.redhat.com/errata/RHSA-2025:21506
- https://access.redhat.com/errata/RHSA-2025:21507
- https://access.redhat.com/errata/RHSA-2025:21508
- https://access.redhat.com/errata/RHSA-2025:21994
- https://access.redhat.com/errata/RHSA-2025:23078
- https://access.redhat.com/errata/RHSA-2025:23079
- https://access.redhat.com/errata/RHSA-2025:23080
- https://access.redhat.com/errata/RHSA-2026:0001
- https://access.redhat.com/errata/RHSA-2026:0076
- https://access.redhat.com/errata/RHSA-2026:0077
- https://access.redhat.com/errata/RHSA-2026:0078
- https://access.redhat.com/errata/RHSA-2026:3461
- https://access.redhat.com/errata/RHSA-2026:3462
- https://access.redhat.com/errata/RHSA-2026:7504
- https://access.redhat.com/security/cve/CVE-2025-9900
- https://bugzilla.redhat.com/show_bug.cgi?id=2392784
- https://github.com/SexyShoelessGodofWar/LibTiff-4.7.0-Write-What-Where?tab=readme-ov-file
- https://gitlab.com/libtiff/libtiff/-/issues/704
- https://gitlab.com/libtiff/libtiff/-/merge_requests/732
- https://libtiff.gitlab.io/libtiff/releases/v4.7.1.html
- http://www.openwall.com/lists/oss-security/2025/09/26/3
- https://lists.debian.org/debian-lts-announce/2025/09/msg00031.html
- https://github.com/SexyShoelessGodofWar/LibTiff-4.7.0-Write-What-Where?tab=readme-ov-file
JSON original (NVD)
Mostrar
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{
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{
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"published": "2025-09-23T17:15:38.357",
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{
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{
"url": "https://access.redhat.com/errata/RHSA-2025:17739",
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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"description": [
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"value": "CWE-123"
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]
}
],
"descriptions": [
{
"lang": "en",
"value": "A flaw was found in Libtiff. This vulnerability is a \"write-what-where\" condition, triggered when the library processes a specially crafted TIFF image file.\n\nBy providing an abnormally large image height value in the file's metadata, an attacker can trick the library into writing attacker-controlled color data to an arbitrary memory location. This memory corruption can be exploited to cause a denial of service (application crash) or to achieve arbitrary code execution with the permissions of the user."
},
{
"lang": "es",
"value": "Se encontró una falla en Libtiff. Esta vulnerabilidad es una condición de “write-what-where”, que se activa cuando la biblioteca procesa un archivo de imagen TIFF especialmente diseñado.\n\nAl proporcionar un valor de altura de imagen anormalmente grande en los metadatos del archivo, un atacante puede engañar a la biblioteca para que escriba datos de color controlados por el atacante en una ubicación de memoria arbitraria. Esta corrupción de memoria puede ser explotada para causar una denegación de servicio (cierre inesperado de la aplicación) o para lograr ejecución de código arbitrario con los permisos del usuario."
}
],
"lastModified": "2026-09-26T00:10:00.127",
"sourceIdentifier": "secalert@redhat.com"
}