CVE-2025-31703

Summary

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.

Affected Software

VendorProductVersion RangeStatus
dahuaNVR2-4KS3Versions which Build time prior to 3rd March 2026affected
dahuaXVR4232AN-I/TVersions which Build time prior to 3rd March 2026affected
dahuaXVR1B16H-I/TVersions which Build time prior to 3rd March 2026affected

Weaknesses

  • CWE-305: CWE-305 Authentication bypass by primary weakness

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References