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Fencer Intel
medium 4.3

CVE-2025-6531 json

SIFUSM/MZZYG BD S1 RTSP Live Video Stream Endpoint access control

published last yr. modified 4mo ago also EUVD-2025-18963

cvss
4.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 21%
public exploits
0
none known

Summary

A vulnerability was found in SIFUSM/MZZYG BD S1 up to 20250611. It has been declared as problematic. This vulnerability affects unknown code of the component RTSP Live Video Stream Endpoint. The manipulation leads to improper access controls. Access to the local network is required for this attack to succeed. The exploit has been disclosed to the public and may be used. This dashcam is distributed by multiple resellers and different names.

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CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
partial
Assessed
last yr.

Exploit prediction

0.29% chance of exploitation in the next 30 days, higher than 21% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • github.com https://github.com/geo-chen/BD referenced PoC, tagged "exploit" by a source, unverified
  • github.com https://github.com/geo-chen/BD?tab=readme-ov-file#finding-1-unauthenticated-access-of-livestream-and-download-of-video-recordings referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 4.0 5.3 CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P
CNA 3.1 4.3 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:W/RC:R
CNA 3.0 4.3 CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:W/RC:R
CNA 2.0 3.3 AV:A/AC:L/Au:N/C:P/I:N/A:N/E:POC/RL:W/RC:UR
CNA 4.0 2.1 CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CNA 3.1 4.3 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CNA 2.0 3.3 AV:A/AC:L/Au:N/C:P/I:N/A:N

Affected products

  • SIFUSM BD S1
  • MZZYG BD S1

Classification

Weakness
  • CWE-284 Improper Access Control
  • CWE-266 Incorrect Privilege Assignment

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.