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Vulnerabilities

Vulnerability · CVE-2025-31703

A vulnerability found in Dahua NVR/XVR device.

Published Mar 18, 2026 · catalog updated Jun 17, 2026 · A vulnerability found in

Check if you run it

No confirmed exploitation is on record for CVE-2025-31703. EPSS is 0.29%. Act only if a listed version of A vulnerability found in is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (A vulnerability found in).
  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Low2.4
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.29%
Remediation
Advisory link
Affected products
See sources for product scope

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.

No affected version ranges are stored yet. Use the vendor advisory before you decide this record does not apply.

How to fix CVE-2025-31703

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2025-31703. EPSS is 0.29%. Act only if a listed version of A vulnerability found in is installed.

Which versions are affected?

Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-305. EPSS 0.29%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Mar 18, 2026 · NIST NVD

    Detected

    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.

  2. Jun 17, 2026 · NIST NVD

    Updated

    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.

Sources

  • CVE.orgVulnerability recordCVE-2025-31703

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-31703

    30-day exploitation probability 0.3%

    first.org
  • NIST NVDVulnerability recordCVE-2025-31703

    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.

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.