Vulnerabilities

CVE-2024-39948 | BDVDB-2026-244245 Detail

DahuaNVR4XXX

Description#

A vulnerability has been found in Dahua products. Attackers can send carefully crafted data packets to the interface with vulnerabilities, causing the device to crash.

Impact#

Per CVSS v3.1: confidentiality impact none, integrity impact none, availability impact high. Attack vector: network.

Weaknesses#

CWE-476 NULL Pointer Dereference
CWE-20 Improper Input Validation

References#

https://www.dahuasecurity.com/aboutUs/trustedCenter/details/768

Exploit#

No public exploit known

History#

Version 12024-07-31Record published in the CVE List.
Version 22025-09-30Most recent update recorded in the CVE List.

Published

Published: 2024-07-31
Last modified: 2025-09-30

Vendor information

Vendor: Dahua
Product: NVR4XXX

All Dahua vulnerabilities

Score

7.5 High

EPSS

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 47.0.

KEV

No

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Memory Corruption

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
NVR4XXX Versions which Build time before 2023/12/13
Fixed
Not stated

Scoring System

CVSS v4.0

Not available

CVSS v3.1

7.5 High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Metric breakdown
Attack Vector	Network
Attack Complexity	Low
Privileges Required	None
User Interaction	None
Scope	Unchanged
Confidentiality	None
Integrity	None
Availability	High

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).