CVE-2026-63362

Medium

An unsigned integer underflow in the PubSub signature verification path in open62541 may allow a remote attacker to cause a denial of…

icscert·CWE-191·Published 2026-07-30

CVSS

5.9

EPSS

0.02

KEV

Exploits

cve.orgen

169 chars

An unsigned integer underflow in the PubSub signature verification path in open62541 may allow a remote attacker to cause a denial of service via a crafted UDP packet.

NVDen

169 chars

An unsigned integer underflow in the PubSub signature verification path in open62541 may allow a remote attacker to cause a denial of service via a crafted UDP packet.

Un desbordamiento negativo de entero sin signo en la ruta de verificación de firma de PubSub en open62541 puede permitir a un atacante remoto causar una denegación de servicio mediante un paquete UDP manipulado.

CVSS metrics across sources

Version	Type	Source	Base	Exp	Impact	Vector
3.1	Primary	cve.org	5.9	—	—	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
3.1	Secondary	NVD	5.9	2.2	3.6	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
4.0	Primary	cve.org	8.2	—	—	CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
4.0	Secondary	NVD	8.2	—	—	CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/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
4.0	Secondary	ENISA EUVD	8.2	—	—	CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N