CVE-2023-1973
A flaw was found in Undertow package. Using the FormAuthenticationMechanism, a malicious user could trigger a Denial of Service by sending crafted requests, leading the server to an OutofMemory error, exhausting the server's memory.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Puntuación base: 7.5
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 1.28%
- Percentil entre todas las CVEs puntuadas: 69
- Fecha de la puntuación: 4/10/2026
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 access95 % - Impacto principal
T1499.004Application or System Exploitationimpact90 %
CVE remota sin autenticación (AV:N/PR:N/UI:N) contra servidor Undertow. Solicitudes manipuladas causan agotamiento de memoria (OutOfMemory/DoS), T1499.004 por consumo de recursos.
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-20
Referencias
- https://access.redhat.com/errata/RHSA-2024:1674
- https://access.redhat.com/errata/RHSA-2024:1675
- https://access.redhat.com/errata/RHSA-2024:1676
- https://access.redhat.com/errata/RHSA-2024:1677
- https://access.redhat.com/errata/RHSA-2024:2763
- https://access.redhat.com/errata/RHSA-2024:2764
- https://access.redhat.com/security/cve/CVE-2023-1973
- https://bugzilla.redhat.com/show_bug.cgi?id=2185662
JSON original (NVD)
Mostrar
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"value": "A flaw was found in Undertow package. Using the FormAuthenticationMechanism, a malicious user could trigger a Denial of Service by sending crafted requests, leading the server to an OutofMemory error, exhausting the server's memory."
},
{
"lang": "es",
"value": "Se encontró una falla en el paquete Undertow. Mediante el uso de FormAuthenticationMechanism, un usuario malintencionado podría provocar una denegación de servicio mediante el envío de solicitudes manipuladas, lo que provocaría un error de falta de memoria en el servidor y agotaría su memoria."
}
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"lastModified": "2026-06-17T05:29:10.430",
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}