Low 2.4Published Mar 18, 2026

CVE-2025-31703A vulnerability found in Dahua NVR/XVR device.

Updated under an hour ago (Oct 27, 2026, 3:50 PM ET)

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It affects dahua NVR2-4KS3 and 2 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for dahua NVR2-4KS3

Exploited in the last 30 days

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.

CVSS: 2.4 LOW (v4.0, CNA)CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N
Weakness (CWE): CWE-305
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: dahua
NVD analysis: Awaiting Analysis
Record last updated: Mar 18, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

dahua NVR2-4KS3 dahua:nvr2_4ks3 (from the name)	Versions which Build time prior to 3rd March 2026	CNA record
dahua XVR4232AN-I/T dahua:xvr4232an_i_t (from the name)	Versions which Build time prior to 3rd March 2026	CNA record
dahua XVR1B16H-I/T dahua:xvr1b16h_i_t (from the name)	Versions which Build time prior to 3rd March 2026	CNA record

References

References

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

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.