CVE-2025-31703

LowCVSS 2.4/10Last modified Jun 17, 2026

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.

Metrics

CVSS 4.0 2.4/10CVSS:4.0/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

Weakness enumeration

CWE-305

Affected software

Source: the vendor's advisory (CNA). NVD analysis pending.

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

References

Timeline

Published
Mar 18, 2026
Last modified
Jun 17, 2026
NVD status
Awaiting Analysis

Related CVEs from 2025

CVE-2025-317049.8A vulnerability has been found in the Dahua Intelligent Connection Center. A remote attacker could send a specially crafted request to the aCVE-2025-31719.8A vulnerability classified as critical was found in Project Worlds Online Lawyer Management System 1.0. This vulnerability affects unknown cCVE-2025-317108.4In engineermode service, there is a possible command injection due to improper input validation. This could lead to local escalation of privCVE-2025-317116.2In cplog service, there is a possible system crash due to null pointer dereference. This could lead to local denial of service with no additCVE-2025-317126.2In cplog service, there is a possible out of bounds write due to a missing bounds check. This could lead to local denial of service with no CVE-2025-317138.4In engineer mode service, there is a possible command injection due to improper input validation. This could lead to local escalation of priCVE-2025-317146.8In Developer Tools, there is a possible missing verification incorrect input. This could lead to local escalation of privilege with no additCVE-2025-317159.8In vowifi service, there is a possible command injection due to improper input validation. This could lead to remote escalation of privilegeCVE-2025-317165.1In bootloader, there is a possible out of bounds write due to a missing bounds check. This could lead to local denial of service with no addCVE-2025-317177.5In modem, there is a possible system crash due to improper input validation. This could lead to remote denial of service with no additional CVE-2025-317187.5In modem, there is a possible system crash due to improper input validation. This could lead to remote escalation of privilege with no additCVE-2025-317195.1In TEE EcDSA algorithm, there is a possible memory consistency issue. This could lead to generated incorrect signature results with low prob