CVE-2021-34593
Estado: AnalizadaAlta (7.5)—
In CODESYS V2 Runtime Toolkit 32 Bit full and PLCWinNT prior to versions V2.4.7.56 unauthenticated crafted invalid requests may result in several denial-of-service conditions. Running PLC programs may be stopped, memory may be leaked, or further communication clients may be blocked from accessing the PLC.
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: 2.74%
- Percentil entre todas las CVEs puntuadas: 86
- 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).
Tecnologías afectadas (15)
Codesys — PlcwinntCodesys — Runtime ToolkitWago — 750-8202 FirmwareWago — 750-8203 FirmwareWago — 750-8204 FirmwareWago — 750-8206 FirmwareWago — 750-8207 FirmwareWago — 750-8208 FirmwareWago — 750-8210 FirmwareWago — 750-8211 FirmwareWago — 750-8212 FirmwareWago — 750-8213 FirmwareWago — 750-8214 FirmwareWago — 750-8216 FirmwareWago — 750-8217 Firmware
CWE
- CWE-755
Referencias
- http://packetstormsecurity.com/files/164716/CODESYS-2.4.7.0-Denial-Of-Service.html
- http://packetstormsecurity.com/files/165874/WAGO-750-8xxx-PLC-Denial-Of-Service-User-Enumeration.html
- http://seclists.org/fulldisclosure/2021/Oct/64
- https://customers.codesys.com/index.php?eID=dumpFile&t=f&f=16877&token=8faab0fc1e069f4edfca5d5aba8146139f67a175&download=
- http://packetstormsecurity.com/files/164716/CODESYS-2.4.7.0-Denial-Of-Service.html
- http://packetstormsecurity.com/files/165874/WAGO-750-8xxx-PLC-Denial-Of-Service-User-Enumeration.html
- http://seclists.org/fulldisclosure/2021/Oct/64
- https://customers.codesys.com/index.php?eID=dumpFile&t=f&f=16877&token=8faab0fc1e069f4edfca5d5aba8146139f67a175&download=
JSON original (NVD)
Mostrar
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