HOME VULNERABILITIESCVE-2019-3948

HIGHPOC

CVE-2019-3948

CWE-306Published: July 29, 2019· Updated: Jun 17, 2026

7.5

CVSS v3.1

Official Description

The Amcrest IP2M-841B V2.520.AC00.18.R, Dahua IPC-XXBXX V2.622.0000000.9.R, Dahua IPC HX5X3X and HX4X3X V2.800.0000008.0.R, Dahua DH-IPC HX883X and DH-IPC-HX863X V2.622.0000000.7.R, Dahua DH-SD4XXXXX V2.623.0000000.7.R, Dahua DH-SD5XXXXX V2.623.0000000.1.R, Dahua DH-SD6XXXXX V2.640.0000000.2.R and V2.623.0000000.1.R, Dahua NVR5XX-4KS2 V3.216.0000006.0.R, Dahua NVR4XXX-4KS2 V3.216.0000006.0.R, and NVR2XXX-4KS2 do not require authentication to access the HTTP endpoint /videotalk. An unauthenticated, remote person can connect to this endpoint and potentionally listen to the audio of the capturing device.

Technical Analysis

CVE-2019-3948 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), with a CVSS base score of 7.5.

A proof-of-concept (PoC) exploit exists for CVE-2019-3948. While not yet confirmed in active campaigns, the availability of PoC code increases exploitation risk substantially.

CVSS v3.1 Vector Breakdown

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges Req.None

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityNone

AvailabilityNone

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected Vendors & Products

amcrest2 product(s)

ip2m-841b firmwareip2m-841b

dahua11 product(s)

dh-ipc-hx863xdh-ipc-hx883xdh-sd4xxxxxdh-sd5xxxxxdh-sd6xxxxxipc-hx4x3xipc-hx5x3xipc-xxbxxnvr2xxx-4ks2nvr4xxx-4ks2nvr5xxx-4ks2

Source: NVD CPE · 13 total CPE entries

Exploit & PoC Resources

POC AVAILABLEProof-of-concept code exists

Offensive Security exploit database

GitHub PoC Search

Community PoC repositories

Rapid7 / Metasploit

Metasploit module search

Security advisories & exploits

Official NIST entry

CVE Program entry

External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttp://packetstormsecurity.com/files/153813/Amcrest-Cameras-2.520.AC00.18.R-Unauthenticated-Audio-Streaming.html

ADVISORYhttps://www.tenable.com/security/research/tra-2019-36

ADVISORYhttp://packetstormsecurity.com/files/153813/Amcrest-Cameras-2.520.AC00.18.R-Unauthenticated-Audio-Streaming.html

ADVISORYhttps://www.tenable.com/security/research/tra-2019-36

All References (8)

→

http://packetstormsecurity.com/files/153813/Amcrest-Cameras-2.520.AC00.18.R-Unauthenticated-Audio-Streaming.htmlExploit · Third Party Advisory · VDB Entry

→

https://us.dahuasecurity.com/wp-content/uploads/2019/08/Cybersecurity_2019-08-02.pdf

→

https://www.dahuasecurity.com/support/cybersecurity/details/627?us

→

https://www.tenable.com/security/research/tra-2019-36Exploit · Third Party Advisory

→

http://packetstormsecurity.com/files/153813/Amcrest-Cameras-2.520.AC00.18.R-Unauthenticated-Audio-Streaming.htmlExploit · Third Party Advisory · VDB Entry

→

https://us.dahuasecurity.com/wp-content/uploads/2019/08/Cybersecurity_2019-08-02.pdf

→

https://www.dahuasecurity.com/support/cybersecurity/details/627?us

→

https://www.tenable.com/security/research/tra-2019-36Exploit · Third Party Advisory

Quick Facts

CVE IDCVE-2019-3948

CVSS Score7.5 / 10

SeverityHIGH

WeaknessCWE-306

CISA KEVNo

ExploitPOC

Affected2 vendor(s)

PublishedJul 29, 2019

Related CVEs (CWE-306)

Recommended Actions

→Apply vendor patches immediately
→Monitor CVE-2019-3948 in threat intel feeds
→Review IDS/IPS signatures for exploitation attempts

Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.

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