CVE-2025-11021
Estado: AplazadaAlta (7.5)—
A flaw was found in the cookie date handling logic of the libsoup HTTP library, widely used by GNOME and other applications for web communication. When processing cookies with specially crafted expiration dates, the library may perform an out-of-bounds memory read. This flaw could result in unintended disclosure of memory contents, potentially exposing sensitive information from the process using libsoup.
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: 0.64%
- Percentil entre todas las CVEs puntuadas: 49
- 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
T1190Exploit Public-Facing Applicationinitial access85 % - Impacto principal
T1005Data from Local Systemcollection90 %
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N indica explotación remota sin privilegios (T1190). CWE-125 (out-of-bounds read) en manejo de cookies permite lectura de memoria (T1005) exponiendo datos sensibles del proceso.
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-125
Referencias
- https://access.redhat.com/errata/RHSA-2025:18183
- https://access.redhat.com/errata/RHSA-2025:19713
- https://access.redhat.com/errata/RHSA-2025:19714
- https://access.redhat.com/errata/RHSA-2025:20959
- https://access.redhat.com/errata/RHSA-2025:21032
- https://access.redhat.com/errata/RHSA-2025:21655
- https://access.redhat.com/errata/RHSA-2025:21656
- https://access.redhat.com/errata/RHSA-2025:21657
- https://access.redhat.com/errata/RHSA-2025:21664
- https://access.redhat.com/errata/RHSA-2025:21665
- https://access.redhat.com/errata/RHSA-2025:21666
- https://access.redhat.com/errata/RHSA-2025:21772
- https://access.redhat.com/errata/RHSA-2025:22013
- https://access.redhat.com/security/cve/CVE-2025-11021
- https://bugzilla.redhat.com/show_bug.cgi?id=2399627
- https://gitlab.gnome.org/GNOME/libsoup/-/issues/459
JSON original (NVD)
Mostrar
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"published": "2025-09-26T09:15:31.370",
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"source": "secalert@redhat.com",
"description": [
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"descriptions": [
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"value": "A flaw was found in the cookie date handling logic of the libsoup HTTP library, widely used by GNOME and other applications for web communication. When processing cookies with specially crafted expiration dates, the library may perform an out-of-bounds memory read. This flaw could result in unintended disclosure of memory contents, potentially exposing sensitive information from the process using libsoup."
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],
"lastModified": "2026-06-29T21:16:31.343",
"sourceIdentifier": "secalert@redhat.com"
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