CVE-2025-31703

State: Published
Severity: 2.4 Low
Published: Mar 18, 2026
Updated: Mar 18, 2026
Reserved: Apr 1, 2025

Description

A vulnerability found in Dahua NVR/XVR device. A third-party malicious attacker with physical access to the device may gain access to a restricted shell via the serial port, and bypasses the shell's authentication mechanism to escalate privileges.

Scores

CVSS	Score	Vector	Source
4.0	2.4 Low	CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N	dahua

Weaknesses

CWE-305 Authentication bypass by primary weakness

Affected Products

Product	Versions
NVR2-4KS3dahua	Versions which Build time prior to 3rd March 2026Affected
XVR4232AN-I/Tdahua	Versions which Build time prior to 3rd March 2026Affected
XVR1B16H-I/Tdahua	Versions which Build time prior to 3rd March 2026Affected

References

https://www.dahuasecurity.com/about-dahua/trust-center/dahua-psirt/security-advisory-%E2%80%93-vulnerability-found-in-dahua-nvr-xvr-device

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