How severe is CVE-2019-3948?

CVE-2019-3948 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2019-3948 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 27% (98th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-3948?

CVE-2019-3948 primarily affects Amcrest Ip2m-841b Firmware. In total, 12 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2019-3948?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2019-3948 published?

CVE-2019-3948 was published on 2019-07-29 and last updated on 2026-06-17.

CVE-2019-3948

CVE-2019-3948 is a high-severity vulnerability in Amcrest Ip2m-841b Firmware with a CVSS 3.x base score of 7.5. Its EPSS exploit-prediction score of 27% places it in the 98th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-306.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 27% (98th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-306
Affected product: Amcrest Ip2m-841b Firmware
Published: 2019-07-29
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2019-3948?: 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.
How severe is CVE-2019-3948?: CVE-2019-3948 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2019-3948 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 27% (98th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-3948?: CVE-2019-3948 primarily affects Amcrest Ip2m-841b Firmware. In total, 12 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2019-3948?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2019-3948 published?: CVE-2019-3948 was published on 2019-07-29 and last updated on 2026-06-17.

References

Affected products (12)

cpe:2.3:o:amcrest:ip2m-841b_firmware:2.520.ac00.18.r:*:*:*:*:*:*:*
cpe:2.3:o:dahua:dh-ipc-hx863x:*:*:*:*:*:*:*:*
cpe:2.3:o:dahua:dh-ipc-hx883x:*:*:*:*:*:*:*:*
cpe:2.3:o:dahua:dh-sd4xxxxx:*:*:*:*:*:*:*:*
cpe:2.3:o:dahua:dh-sd5xxxxx:*:*:*:*:*:*:*:*
cpe:2.3:o:dahua:dh-sd6xxxxx:*:*:*:*:*:*:*:*
cpe:2.3:o:dahua:ipc-hx4x3x:*:*:*:*:*:*:*:*
cpe:2.3:o:dahua:ipc-hx5x3x:*:*:*:*:*:*:*:*
cpe:2.3:o:dahua:ipc-xxbxx:*:*:*:*:*:*:*:*
cpe:2.3:o:dahua:nvr2xxx-4ks2:*:*:*:*:*:*:*:*
cpe:2.3:o:dahua:nvr4xxx-4ks2:*:*:*:*:*:*:*:*
cpe:2.3:o:dahua:nvr5xxx-4ks2:*:*:*:*:*:*:*:*

Other CWE-306 (Missing Authentication for Critical Function) vulnerabilities

CVE-2026-54309 — Critical (CVSS 10.0): n8n is an open source workflow automation platform. Prior to 2.25.7 and 2.26.2, when @n8n/mcp-browser is run in HTTP…
CVE-2026-50242 — Critical (CVSS 10.0): In JetBrains Hub before 2026.1.13757, 2025.3.148033, 2025.2.148048, 2025.1.148120, 2024.3.148430, 2024.2.148429…
CVE-2026-49257 — Critical (CVSS 10.0): mcp-pinot is a Python-based Model Context Protocol (MCP) server for interacting with Apache Pinot. In versions 3.0.1…
CVE-2026-46846 — Critical (CVSS 10.0): Vulnerability in the Oracle WebCenter Portal product of Oracle Fusion Middleware (component: Security Framework).…
CVE-2026-46803 — Critical (CVSS 10.0): Vulnerability in the Oracle WebCenter Portal product of Oracle Fusion Middleware (component: Security Framework).…
CVE-2026-46800 — Critical (CVSS 10.0): Vulnerability in the Oracle WebCenter Sites product of Oracle Fusion Middleware (component: WebCenter Sites).…

Browse all CWE-306 (Missing Authentication for Critical Function) vulnerabilities →