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TI-2026-03889 Aliases CVE-2026-4478GHSA-mp64-rm5r-c35p

Yi Technology YI Home Camera HTTP Firmware Update ipc signature verification

Priority HIGH 75CWE-345Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Attack requirements
None
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-345.

Summary

A vulnerability was identified in Yi Technology YI Home Camera 2 2.1.1_20171024151200. This impacts an unknown function of the file home/web/ipc of the component HTTP Firmware Update Handler. The manipulation leads to improper verification of cryptographic signature. The attack is possible to be carried out remotely. The complexity of an attack is rather high. The exploitability is said to be difficult. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00288 21st percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
YiYI Home Camera2 2.1.1_20171024151200—No fix listedCNA
  • YI Home Camera VendorYi Affected 2 2.1.1_20171024151200 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-4478
  2. 2026-10-03 Alias added: GHSA-mp64-rm5r-c35p

References

—

  • TI-2026-03886 Yi Technology YI Home Camera ipc hard-coded credentials CVSS 4.0HIGH 8.7
  • TI-2018-02902 An exploitable code execution vulnerability exists in the firmware update functionality… CVSS 3.1CRITICAL 9.8
  • TI-2024-37695 Improper access control in the HTTP server in YI Car Dashcam v3.88 allows unrestricted… CVSS 3.1CRITICAL 9.8
  • TI-2018-02869 Memory corruption in Yi Technology CVSS 3.1HIGH 8.8
  • TI-2018-02861 Buffer overflow in Yi Technology CVSS 3.1HIGH 8.1
  • TI-2018-02915 Information disclosure in Yi Technology CVSS 3.1HIGH 8.1
See all 16 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences