A vulnerability found in Dahua NVR/XVR device. A third-party malicious...

2.4 CVSS

Vulnerability 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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

THREAT MONITOR

Am I Vulnerable?

Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2025-31703

Check My Exposure

Credits & Attribution

No credits recorded in the NVD database.

References

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

Affected Vendor

dahua

View all reports →

Affected Software

NVR2-4KS3, XVR4232AN-I/T, XVR1B16H-I/T

Vulnerable Versions:

Versions which Build time prior to 3rd March 2026

Timeline

Official Publish: March 18th, 2026

Last Modified: March 18th, 2026

Added to House: July 22nd, 2026

CVSS Vectors

Weaknesses (CWE)

CWE-305

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.