CVE-2026-41054
Estado: Pendiente de análisisAlta (7.8)—
In `src/havegecmd.c`, the `socket_handler` function performs a credential check on the abstract UNIX socket (`\0/sys/entropy/haveged`). However, while it detects if the connecting user is not root (`cred.uid != 0`) and prepares a negative acknowledgement (`ASCII_NAK`), it **fails to stop execution**. The code proceeds to the `switch` statement, allowing any local unprivileged user to execute privileged commands such as `MAGIC_CHROOT`.
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
T1059Command and Scripting Interpreterexecution85 % - Impacto secundario
T1565.001Stored Data Manipulationimpact75 %
Vulnerabilidad de escalada local (AV:L, PR:L) en socket UNIX que permite a usuario no privilegiado ejecutar comandos privilegiados (MAGIC_CHROOT) sin interacción. Fallo en control de acceso en socket abstracto.
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-305
Referencias
- https://bugzilla.suse.com/show_bug.cgi?id=CVE-2026-41054
- http://www.openwall.com/lists/oss-security/2026/05/19/3
- http://www.openwall.com/lists/oss-security/2026/05/19/4
- http://www.openwall.com/lists/oss-security/2026/05/19/5
- http://www.openwall.com/lists/oss-security/2026/05/20/1
- http://www.openwall.com/lists/oss-security/2026/05/21/17
- http://www.openwall.com/lists/oss-security/2026/05/22/1
- https://lists.debian.org/debian-lts-announce/2026/06/msg00005.html
JSON original (NVD)
Mostrar
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{
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},
{
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"packageName": "libhavege2",
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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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"defaultStatus": "unaffected"
},
{
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"versions": [
{
"status": "affected",
"version": "?",
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}
],
"packageName": "haveged",
"defaultStatus": "unaffected"
},
{
"vendor": "SUSE",
"product": "SUSE Manager Server LTS 4.3",
"versions": [
{
"status": "affected",
"version": "?",
"lessThan": "1.9.14-150400.3.11.1",
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}
],
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"defaultStatus": "unaffected"
},
{
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"versions": [
{
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],
"packageName": "libhavege2",
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]
}
],
"published": "2026-05-20T10:16:26.990",
"references": [
{
"url": "https://bugzilla.suse.com/show_bug.cgi?id=CVE-2026-41054",
"source": "meissner@suse.de"
},
{
"url": "http://www.openwall.com/lists/oss-security/2026/05/19/3",
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "http://www.openwall.com/lists/oss-security/2026/05/19/4",
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "http://www.openwall.com/lists/oss-security/2026/05/19/5",
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "http://www.openwall.com/lists/oss-security/2026/05/20/1",
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "http://www.openwall.com/lists/oss-security/2026/05/21/17",
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "http://www.openwall.com/lists/oss-security/2026/05/22/1",
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://lists.debian.org/debian-lts-announce/2026/06/msg00005.html",
"source": "af854a3a-2127-422b-91ae-364da2661108"
}
],
"vulnStatus": "Awaiting Analysis",
"weaknesses": [
{
"type": "Secondary",
"source": "meissner@suse.de",
"description": [
{
"lang": "en",
"value": "CWE-305"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In `src/havegecmd.c`, the `socket_handler` function performs a credential check on the abstract UNIX socket (`\\0/sys/entropy/haveged`). However, while it detects if the connecting user is not root (`cred.uid != 0`) and prepares a negative acknowledgement (`ASCII_NAK`), it **fails to stop execution**. The code proceeds to the `switch` statement, allowing any local unprivileged user to execute privileged commands such as `MAGIC_CHROOT`."
},
{
"lang": "es",
"value": "En src/havegecmd.c , la función socket_handler realiza una comprobación de credenciales en el socket UNIX abstracto ( \\0/sys/entropy/haveged ). Sin embargo, aunque detecta si el usuario que se conecta no es root ( cred.uid != 0 ) y prepara un acuse de recibo negativo ( ASCII_NAK ), no detiene la ejecución. El código procede a la instrucción 'switch', permitiendo a cualquier usuario local sin privilegios ejecutar comandos privilegiados como MAGIC_CHROOT ."
}
],
"lastModified": "2026-07-24T10:10:00.197",
"sourceIdentifier": "meissner@suse.de"
}