# CVE-2026-100293: Anjvision YSSD-RTMP-H5 insecure firmware update in local and cloud mechanisms

Source: https://junglewise.ai/threats/cve-2026-100293-in-anjvision-yssd-rtmp-h5-firmware-version-3-3-2-4-both-the  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-29. Updated: 2026-09-29  
License: CC BY 4.0 with a link back

CVE-2026-100293 · Severity: high · CVSS 8.8 · Published 2026-09-29

The Anjvision YSSD-RTMP-H5 is a network streaming appliance used for RTMP video delivery. An attacker with network access to the device can supply malicious firmware that lacks cryptographic verification, allowing full device compromise and potential use as a platform for ransomware or lateral network attacks.

Technologies: [Anjvision YSSD-RTMP-H5](https://junglewise.ai/threats/technologies/yssd-rtmp-h5). Vendors: [Anjvision](https://junglewise.ai/threats/vendors/anjvision).

## Quick answers

**Is CVE-2026-100293 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-100293 being exploited in the wild.

**How severe is CVE-2026-100293?** High severity, with a CVSS score of 8.8, published 29 September 2026.

**Which products and versions are affected?** Anjvision YSSD-RTMP-H5 3.3.2.4_build_2024-12-26.

**Is there a fix for CVE-2026-100293?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-100293 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2026-100293?** Check whether you run Anjvision YSSD-RTMP-H5 at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

The firmware update mechanism in YSSD-RTMP-H5 version 3.3.2.4 relies only on basic hashing rather than cryptographic signature verification for both local and cloud update paths. An attacker with network access to the update endpoint can introduce untrusted firmware images that the device will accept and execute with full privileges, gaining arbitrary code execution.

## Affected products

- Anjvision YSSD-RTMP-H5 3.3.2.4_build_2024-12-26

## Timeline

- 2026-09-29: disclosed

## References

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

## Related threats

- [Anjvision YSSD-RTMP-H5 weak cryptography in serial console](https://junglewise.ai/threats/cve-2026-100299-in-anjvision-yssd-rtmp-h5-firmware-version-3-3-2-4-the-device)
- [Anjvision YSSD-RTMP-H5 information disclosure in user endpoints](https://junglewise.ai/threats/cve-2026-100298-in-anjvision-yssd-rtmp-h5-firmware-version-3-3-2-4-two-user)
- [Anjvision YSSD-RTMP-H5 network probe SSRF](https://junglewise.ai/threats/cve-2026-100297-in-anjvision-yssd-rtmp-h5-firmware-version-3-3-2-4-an)
- [Anjvision YSSD-RTMP-H5 privilege escalation in /setUserConfig](https://junglewise.ai/threats/cve-2026-100296-in-anjvision-yssd-rtmp-h5-firmware-version-3-3-2-4-an-empty-body)
- [Anjvision YSSD-RTMP-H5 debug interface exposure](https://junglewise.ai/threats/cve-2026-100295-in-anjvision-yssd-rtmp-h5-firmware-version-3-3-2-4-an-internal)