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Fencer Intel
critical 9.8

CVE-2024-56897 json

Improper access control in the HTTP server in YI Car Dashcam v3.88 allows unrestricted file downloads, uploads, and API commands.

published last yr. modified 4mo ago also EUVD-2025-4285

cvss
9.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.7%
EPSS 0.7% chance of exploitation in 30 days, percentile 55%
public exploits
0
none known

Summary

Improper access control in the HTTP server in YI Car Dashcam v3.88 allows unrestricted file downloads, uploads, and API commands. API commands can also be made to make unauthorized modifications to the device settings, such as disabling recording, disabling sounds, factory reset.

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CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
last yr.

Exploit prediction

0.75% chance of exploitation in the next 30 days, higher than 55% of all scored CVEs (FIRST EPSS, 2026-11-11).

Exploits and checks

  • github.com https://github.com/geo-chen/YI-Smart-Dashcam/ referenced PoC, tagged "exploit" by a source, unverified
  • geochen.medium.com https://geochen.medium.com/cve-2024-56897-yi-car-dashcam-39304a4b21b4 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CISA ADP 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Classification

Weakness
  • CWE-434 Unrestricted Upload of File with Dangerous Type

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.