CVE-2026-5211
Estado: AnalizadaAlta (7.4)—
A flaw has been found in D-Link DNS-120, DNR-202L, DNS-315L, DNS-320, DNS-320L, DNS-320LW, DNS-321, DNR-322L, DNS-323, DNS-325, DNS-326, DNS-327L, DNR-326, DNS-340L, DNS-343, DNS-345, DNS-726-4, DNS-1100-4, DNS-1200-05 and DNS-1550-04 up to 20260205. This vulnerability affects the function UPnP_AV_Server_Path_Del of the file /cgi-bin/app_mgr.cgi. Executing a manipulation of the argument f_dir can lead to stack-based buffer overflow. The attack can be executed remotely. The exploit has been published and may be used.
CVSS
- Versión: 4.0
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- Puntuación base: 7.4
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 1.17%
- Percentil entre todas las CVEs puntuadas: 66
- 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
T1210Exploitation of Remote Serviceslateral movement85 % - Impacto principal
T1059Command and Scripting Interpreterexecution80 % - Impacto secundario
T1068Exploitation for Privilege Escalationprivilege escalation75 %
Vector CVSS con AV:N, PR:L, UI:N sugiere servicios remotos con acceso autenticado (T1210). Stack-based buffer overflow (CWE-121/787) en CGI permite ejecución de código arbitrario (T1059) y potencial escalada de privilegios (T1068).
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 (20)
Dlink — Dnr-202l FirmwareDlink — Dnr-326 FirmwareDlink — Dns-1100-4 FirmwareDlink — Dns-1200-05 FirmwareDlink — Dns-120 FirmwareDlink — Dns-1550-04 FirmwareDlink — Dns-315l FirmwareDlink — Dns-320 FirmwareDlink — Dns-320l FirmwareDlink — Dns-320lw FirmwareDlink — Dns-321 FirmwareDlink — Dns-322l FirmwareDlink — Dns-323 FirmwareDlink — Dns-325 FirmwareDlink — Dns-326 FirmwareDlink — Dns-327l FirmwareDlink — Dns-340l FirmwareDlink — Dns-343 FirmwareDlink — Dns-345 FirmwareDlink — Dns-726-4 Firmware
CWE
- CWE-119, CWE-121
- CWE-787
Referencias
JSON original (NVD)
Mostrar
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