CVE-2026-100293

HIGH 8.8

Improper verification of cryptographic signature in Anjvision YSSD-RTMP-H5

CVSS Score

8.8

EPSS Score

0.0%

EPSS Percentile

0th

In Anjvision YSSD‑RTMP‑H5 firmware version 3.3.2.4, both the local and cloud update mechanisms apply new firmware without any cryptographic verification, relying only on basic hashing. This design allows an attacker who can reach the update routine to introduce untrusted firmware images that the device will accept as valid.

CWE	CWE-347
Vendor	anjvision
Product	yssd-rtmp-h5
Published	Sep 29, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Affected Versions

Anjvision / YSSD-RTMP-H5

Version 3.3.2.4 build 2024-12-26

References

NVD ↗ CVE.org ↗ EPSS Data ↗

cisa.gov: https://www.cisa.gov/news-events/ics-advisories/icsa-26-272-05

Credits

Andrew Lee reported these vulnerabilities to CISA.