CVE-2024-39947

A vulnerability has been found in Dahua products.After obtaining the ordinary user's username and password, the attacker can send a carefully crafted data packet to the interface with vulnerabilities, causing the device to crash.

Published: 2024-07-31 Last update: 2024-08-19 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2024-39947 is rated Moderate Risk (46.1/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.36%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2024-39947

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-03-23 0.47% 0.36% -0.11%
2 2025-12-30 0.28% 0.47% +0.19%
3 2025-09-08 — 0.28% —

Full EPSS history (7 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2024-39947

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.5 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.8 3.6 [email protected]
6.5 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.8 3.6 [email protected]

Weakness enumeration for CVE-2024-39947

Affected software / configurations for CVE-2024-39947

Vendor Product Version Raw CPE
dahuasecurity nvr4104-4ks2\/l_firmware < 4.003.0000000.1.r.240515 cpe:2.3:o:dahuasecurity:nvr4104-4ks2\/l_firmware:*:*:*:*:*:*:*:*
dahuasecurity nvr4108-4ks2\/l_firmware 4.003.0000000.1.r.240515 cpe:2.3:o:dahuasecurity:nvr4108-4ks2\/l_firmware:4.003.0000000.1.r.240515:*:*:*:*:*:*:*
dahuasecurity nvr4116-4ks2\/l_firmware < 4.003.0000000.1.r.240515 cpe:2.3:o:dahuasecurity:nvr4116-4ks2\/l_firmware:*:*:*:*:*:*:*:*
dahuasecurity nvr4104-p-4ks2\/l_firmware < 4.003.0000000.1.r.240515 cpe:2.3:o:dahuasecurity:nvr4104-p-4ks2\/l_firmware:*:*:*:*:*:*:*:*
dahuasecurity nvr4108-p-4ks2\/l_firmware < 4.003.0000000.1.r.240515 cpe:2.3:o:dahuasecurity:nvr4108-p-4ks2\/l_firmware:*:*:*:*:*:*:*:*
dahuasecurity nvr4108-8p-4ks2\/l_firmware < 4.003.0000000.1.r.240515 cpe:2.3:o:dahuasecurity:nvr4108-8p-4ks2\/l_firmware:*:*:*:*:*:*:*:*
dahuasecurity nvr4116-8p-4ks2\/l_firmware < 4.003.0000000.1.r.240515 cpe:2.3:o:dahuasecurity:nvr4116-8p-4ks2\/l_firmware:*:*:*:*:*:*:*:*
dahuasecurity nvr4104hs-4ks2\/l_firmware < 4.003.0000000.1.r.240515 cpe:2.3:o:dahuasecurity:nvr4104hs-4ks2\/l_firmware:*:*:*:*:*:*:*:*
dahuasecurity nvr4108hs-4ks2\/l_firmware < 4.003.0000000.1.r.240515 cpe:2.3:o:dahuasecurity:nvr4108hs-4ks2\/l_firmware:*:*:*:*:*:*:*:*
dahuasecurity nvr4104hs-p-4ks2\/l_firmware < 4.003.0000000.1.r.240515 cpe:2.3:o:dahuasecurity:nvr4104hs-p-4ks2\/l_firmware:*:*:*:*:*:*:*:*
dahuasecurity nvr4108hs-p-4ks2\/l_firmware < 4.003.0000000.1.r.240515 cpe:2.3:o:dahuasecurity:nvr4108hs-p-4ks2\/l_firmware:*:*:*:*:*:*:*:*
dahuasecurity nvr4108hs-8p-4ks2\/l_firmware < 4.003.0000000.1.r.240515 cpe:2.3:o:dahuasecurity:nvr4108hs-8p-4ks2\/l_firmware:*:*:*:*:*:*:*:*
dahuasecurity nvr4116hs-8p-4ks2\/l_firmware < 4.003.0000000.1.r.240515 cpe:2.3:o:dahuasecurity:nvr4116hs-8p-4ks2\/l_firmware:*:*:*:*:*:*:*:*
dahuasecurity nvr4204-4ks2\/l_firmware < 4.003.0000000.1.r.240515 cpe:2.3:o:dahuasecurity:nvr4204-4ks2\/l_firmware:*:*:*:*:*:*:*:*
dahuasecurity nvr4208-4ks2\/l_firmware < 4.003.0000000.1.r.240515 cpe:2.3:o:dahuasecurity:nvr4208-4ks2\/l_firmware:*:*:*:*:*:*:*:*
dahuasecurity nvr4216-4ks2\/l_firmware < 4.003.0000000.1.r.240515 cpe:2.3:o:dahuasecurity:nvr4216-4ks2\/l_firmware:*:*:*:*:*:*:*:*
dahuasecurity nvr4204-p-4ks2\/l_firmware < 4.003.0000000.1.r.240515 cpe:2.3:o:dahuasecurity:nvr4204-p-4ks2\/l_firmware:*:*:*:*:*:*:*:*
dahuasecurity nvr4208-8p-4ks2\/l_firmware < 4.003.0000000.1.r.240515 cpe:2.3:o:dahuasecurity:nvr4208-8p-4ks2\/l_firmware:*:*:*:*:*:*:*:*
dahuasecurity nvr4216-16p-4ks2\/l_firmware < 4.003.0000000.1.r.240515 cpe:2.3:o:dahuasecurity:nvr4216-16p-4ks2\/l_firmware:*:*:*:*:*:*:*:*
dahuasecurity nvr4232-4ks2\/l_firmware < 4.003.0000000.1.r.240515 cpe:2.3:o:dahuasecurity:nvr4232-4ks2\/l_firmware:*:*:*:*:*:*:*:*
dahuasecurity nvr4232-16p-4ks2\/l_firmware < 4.003.0000000.1.r.240515 cpe:2.3:o:dahuasecurity:nvr4232-16p-4ks2\/l_firmware:*:*:*:*:*:*:*:*
dahuasecurity nvr4116hs-4ks2\/l_firmware < 4.003.0000000.1.r.240515 cpe:2.3:o:dahuasecurity:nvr4116hs-4ks2\/l_firmware:*:*:*:*:*:*:*:*
dahuasecurity nvr4416-4ks2\/i_firmware < 4.001.0000001.6.r.240725 cpe:2.3:o:dahuasecurity:nvr4416-4ks2\/i_firmware:*:*:*:*:*:*:*:*
dahuasecurity nvr4416-16p-4ks2\/i_firmware < 4.001.0000001.6.r.240725 cpe:2.3:o:dahuasecurity:nvr4416-16p-4ks2\/i_firmware:*:*:*:*:*:*:*:*
dahuasecurity nvr4432-16p-4ks2\/i_firmware < 4.001.0000001.6.r.240725 cpe:2.3:o:dahuasecurity:nvr4432-16p-4ks2\/i_firmware:*:*:*:*:*:*:*:*
dahuasecurity nvr4816-4ks2\/i_firmware < 4.001.0000001.6.r.240725 cpe:2.3:o:dahuasecurity:nvr4816-4ks2\/i_firmware:*:*:*:*:*:*:*:*
dahuasecurity nvr4816-16p-4ks2\/i_firmware < 4.001.0000001.6.r.240725 cpe:2.3:o:dahuasecurity:nvr4816-16p-4ks2\/i_firmware:*:*:*:*:*:*:*:*
dahuasecurity nvr4832-4ks2\/i_firmware < 4.001.0000001.6.r.240725 cpe:2.3:o:dahuasecurity:nvr4832-4ks2\/i_firmware:*:*:*:*:*:*:*:*
dahuasecurity nvr4832-16p-4ks2\/i_firmware < 4.001.0000001.6.r.240725 cpe:2.3:o:dahuasecurity:nvr4832-16p-4ks2\/i_firmware:*:*:*:*:*:*:*:*
dahuasecurity nvr4432-4ks2\/i_firmware < 4.001.0000001.6.r.240725 cpe:2.3:o:dahuasecurity:nvr4432-4ks2\/i_firmware:*:*:*:*:*:*:*:*
dahuasecurity nvr4232-4ks3_firmware < 4.003.0000000.0.r.240312 cpe:2.3:o:dahuasecurity:nvr4232-4ks3_firmware:*:*:*:*:*:*:*:*
dahuasecurity nvr4232-16p-4ks3_firmware < 4.003.0000000.0.r.240312 cpe:2.3:o:dahuasecurity:nvr4232-16p-4ks3_firmware:*:*:*:*:*:*:*:*
dahuasecurity nvr4216-4ks3_firmware < 4.003.0000000.0.r.240312 cpe:2.3:o:dahuasecurity:nvr4216-4ks3_firmware:*:*:*:*:*:*:*:*
dahuasecurity nvr4216-16p-4ks3_firmware < 4.003.0000000.0.r.240312 cpe:2.3:o:dahuasecurity:nvr4216-16p-4ks3_firmware:*:*:*:*:*:*:*:*
dahuasecurity nvr4208-8p-4ks3_firmware < 4.003.0000000.0.r.240312 cpe:2.3:o:dahuasecurity:nvr4208-8p-4ks3_firmware:*:*:*:*:*:*:*:*
dahuasecurity nvr4208-4ks3_firmware < 4.003.0000000.0.r.240312 cpe:2.3:o:dahuasecurity:nvr4208-4ks3_firmware:*:*:*:*:*:*:*:*
dahuasecurity nvr4204-p-4ks3_firmware < 4.003.0000000.0.r.240312 cpe:2.3:o:dahuasecurity:nvr4204-p-4ks3_firmware:*:*:*:*:*:*:*:*
dahuasecurity nvr4204-4ks3_firmware < 4.003.0000000.0.r.240312 cpe:2.3:o:dahuasecurity:nvr4204-4ks3_firmware:*:*:*:*:*:*:*:*
dahuasecurity nvr4116hs-8p-4ks3_firmware < 4.003.0000000.0.r.240312 cpe:2.3:o:dahuasecurity:nvr4116hs-8p-4ks3_firmware:*:*:*:*:*:*:*:*
dahuasecurity nvr4116hs-4ks3_firmware < 4.003.0000000.0.r.240312 cpe:2.3:o:dahuasecurity:nvr4116hs-4ks3_firmware:*:*:*:*:*:*:*:*
dahuasecurity nvr4108hs-p-4ks3_firmware < 4.003.0000000.0.r.240312 cpe:2.3:o:dahuasecurity:nvr4108hs-p-4ks3_firmware:*:*:*:*:*:*:*:*
dahuasecurity nvr4108hs-8p-4ks3_firmware < 4.003.0000000.0.r.240312 cpe:2.3:o:dahuasecurity:nvr4108hs-8p-4ks3_firmware:*:*:*:*:*:*:*:*
dahuasecurity nvr4108hs-4ks3_firmware < 4.003.0000000.0.r.240312 cpe:2.3:o:dahuasecurity:nvr4108hs-4ks3_firmware:*:*:*:*:*:*:*:*
dahuasecurity nvr4104hs-p-4ks3_firmware < 4.003.0000000.0.r.240312 cpe:2.3:o:dahuasecurity:nvr4104hs-p-4ks3_firmware:*:*:*:*:*:*:*:*
dahuasecurity nvr4104hs-4ks3_firmware < 4.003.0000000.0.r.240312 cpe:2.3:o:dahuasecurity:nvr4104hs-4ks3_firmware:*:*:*:*:*:*:*:*
dahuasecurity nvr4116-8p-4ks3_firmware < 4.003.0000000.0.r.240312 cpe:2.3:o:dahuasecurity:nvr4116-8p-4ks3_firmware:*:*:*:*:*:*:*:*
dahuasecurity nvr4116-4ks3_firmware < 4.003.0000000.0.r.240312 cpe:2.3:o:dahuasecurity:nvr4116-4ks3_firmware:*:*:*:*:*:*:*:*
dahuasecurity nvr4108-p-4ks3_firmware < 4.003.0000000.0.r.240312 cpe:2.3:o:dahuasecurity:nvr4108-p-4ks3_firmware:*:*:*:*:*:*:*:*
dahuasecurity nvr4104-4ks3_firmware < 4.003.0000000.0.r.240312 cpe:2.3:o:dahuasecurity:nvr4104-4ks3_firmware:*:*:*:*:*:*:*:*
dahuasecurity nvr4108-8p-4ks3_firmware < 4.003.0000000.0.r.240312 cpe:2.3:o:dahuasecurity:nvr4108-8p-4ks3_firmware:*:*:*:*:*:*:*:*
dahuasecurity nvr4108-4ks3_firmware < 4.003.0000000.0.r.240312 cpe:2.3:o:dahuasecurity:nvr4108-4ks3_firmware:*:*:*:*:*:*:*:*
dahuasecurity nvr4104-p-4ks3_firmware < 4.003.0000000.0.r.240312 cpe:2.3:o:dahuasecurity:nvr4104-p-4ks3_firmware:*:*:*:*:*:*:*:*
dahuasecurity nvr4104hs-p-4ks3\(960g\)_firmware < 4.003.0000000.0.r.240312 cpe:2.3:o:dahuasecurity:nvr4104hs-p-4ks3\(960g\)_firmware:*:*:*:*:*:*:*:*
dahuasecurity nvr4104hs-4ks3\(960g\)_firmware < 4.003.0000000.0.r.240312 cpe:2.3:o:dahuasecurity:nvr4104hs-4ks3\(960g\)_firmware:*:*:*:*:*:*:*:*
dahuasecurity nvr4108hs-4ks3\(960g\)_firmware < 4.003.0000000.0.r.240312 cpe:2.3:o:dahuasecurity:nvr4108hs-4ks3\(960g\)_firmware:*:*:*:*:*:*:*:*
dahuasecurity nvr4104-p-4ks3\(960g\)_firmware < 4.003.0000000.0.r.240312 cpe:2.3:o:dahuasecurity:nvr4104-p-4ks3\(960g\)_firmware:*:*:*:*:*:*:*:*

References for CVE-2024-39947

cvelogic Threat Intelligence