PT-2026-26031 · Dahua · Dahua Nvr/Xvr

Published 2026-03-18 · Updated 2026-03-18 · CVE-2025-31703

Positive Technologies (AI Summary)

CVSS v4.0

2.4

Low

Base vector

AV:P/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/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

Name of the Vulnerable Software and Affected Versions Dahua NVR/XVR (affected versions not specified)

Description A security issue exists in Dahua NVR/XVR devices. An attacker with physical access can obtain access to a restricted shell through the serial port. This access bypasses the shell’s authentication, allowing for privilege escalation.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Weakness Enumeration

CWE-305

Related Identifiers

CVE-2025-31703

Affected Products

Dahua Nvr/Xvr

References · 3

• https://nvd.nist.gov/vuln/detail/CVE-2025-31703 · Security Note
• https://twitter.com/CVEnew/status/2034365317649137777 · Twitter Post
• https://dahuasecurity.com/about-dahua/trust-center/dahua-psirt/security-advisory-%E2%80%93-vulnerability-found-in-dahua-nvr-xvr-device · Note