CVE-2025-31703

LOW

Dahua NVR2-4KS3 <2026-03-03 - Privilege Escalation

Title source: llm

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.

References (1)

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

Scores

CVSS v4 2.4

EPSS 0.0001

EPSS Percentile 1.3%

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

Details

CWE

CWE-305

Status published

Products (3)

dahua/NVR2-4KS3 Versions which Build time prior to 3rd March 2026

dahua/XVR1B16H-I/T Versions which Build time prior to 3rd March 2026

dahua/XVR4232AN-I/T Versions which Build time prior to 3rd March 2026

Published Mar 18, 2026

Tracked Since Mar 18, 2026