Improper verification of cryptographic signature in Anjvision YSSD-RTMP-H5 (CVE-2026-100293) | HOL Guard CVE

High · CVSS 8.7CVE-2026-100293

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

Answer in brief

CVE-2026-100293 records a High severity (CVSS 8.7) vulnerability in Improper verification of cryptographic signature in Anjvision YSSD-RTMP-H5. The current sources do not mark it as known exploited. The current feed maps Anjvision/YSSD-RTMP-H5 (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 29, 2026Updated Sep 29, 2026Source checked Sep 29, 2026First seen by HOL Sep 29, 2026Material review Sep 29, 2026

Upstream Advisory

Key facts

Risk: High · CVSS 8.7
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Not reported

Why this deserves its current priority

CVSS is 8.7. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Anjvision/YSSD-RTMP-H5 (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Anjvision/YSSD-RTMP-H5generic	Version 3.3.2.4 build 2024-12-26	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Anjvision/YSSD-RTMP-H5.
Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

Published upstream
Sep 29, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 29, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 29, 2026

Sources and claim methodology

CISA Known Exploited Vulnerabilities catalogcisa.gov

Upstream source description

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.

Quoted source text, attributed separately from HOL analysis.