CVE-2019-3948Dh-Ipc-Hx863x Missing Authentication
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…
Published Jul 29, 2019 · Updated Nov 21, 2024
Key Facts
Patch immediately- CVE-2019-3948 is a high-severity vulnerability (CVSS 7.5 v3) affecting Ip2m-841b Firmware (Amcrest), Dh-Ipc-Hx863x (Dahua), Dh-Ipc-Hx883x (Dahua) and 12 more products.
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 25% probability of exploitation in the next 30 days.
- Fixed versions are available, including Dh-Ipc-Hx863x 2018-05-18, Dh-Ipc-Hx883x 2018-05-18, Dh-Sd4xxxxx 2018-05-18.
- Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.
Scores
CVSS v3
7.5
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS (30-day exploit likelihood)
25%
Higher than 97.9% of all scored CVEs
Exploit maturity
Proof of concept
ATLAS score
37/100
Publication score, see How it works
Exploitation Verdict
KEV listed
Not listed
Federal due date
None
No federal due date
Ransomware use
Not reported
Attributed actors
None named
Exploit & Defence Guidance
Exploit maturity
Proof of concept
Public exploit code
2
Proof-of-concept links
In-the-wild evidence
1
Reports of active use
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.
Affected Products
20 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Ip2m-841b FirmwareAmcrest | 2.520.ac00.18.r | n/a |
| Dh-Ipc-Hx863xDahua | See advisory | 2018-05-18 |
| Dh-Ipc-Hx883xDahua | See advisory | 2018-05-18 |
| Dh-Sd4xxxxxDahua | >= V2.623.0000000.7.R | 2018-05-18 |
| Dh-Sd5xxxxxDahua | >= V2.623.0000000.1.R | 2018-05-18 |
Patched Releases
Dh-Ipc-Hx863x
2018-05-18
Dh-Ipc-Hx883x
2018-05-18
Dh-Sd4xxxxx
2018-05-18
Dh-Sd5xxxxx
2018-05-18
Dh-Sd6xxxxx
2018-05-18
Ipc-Hx4x3x
2018-05-18
Ipc-Hx5x3x
2018-05-18
Ipc-Xxbxx
2018-05-18
Nvr2xxx-4ks2
2018-05-18
Nvr4xxx-4ks2
2018-05-18
Nvr5xxx-4ks2
2018-05-18
Timeline
Publicly disclosed
Jul 29, 2019
Last updated
Nov 21, 2024
Weakness Type
- CWE-306 Missing Authentication for Critical Function
FAQ
Common Questions.
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,…
Affected: Ip2m-841b Firmware (Amcrest) versions 2.520.ac00.18.r; Dh-Ipc-Hx863x (Dahua); Dh-Ipc-Hx883x (Dahua), among others. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including Dh-Ipc-Hx863x 2018-05-18, Dh-Ipc-Hx883x 2018-05-18, Dh-Sd4xxxxx 2018-05-18.
Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.
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