Anjvision YSSD-RTMP-H5

Summary

Multiple critical vulnerabilities have been discovered in Anjvision YSSD-RTMP-H5 firmware version 3.3.2.4. These flaws could allow attackers to access sensitive information, user accounts, execute OS commands, or gain full device control. Anjvision has not planned a fix and has not responded to CISA's requests for mitigation.

Full text

ICS Advisory Anjvision YSSD-RTMP-H5 Release DateSeptember 29, 2026 Alert CodeICSA-26-272-05 Related topics: Industrial Control System Vulnerabilities , Industrial Control Systems View CSAF Summary Successful exploitation of these vulnerabilities could allow an attacker to access sensitive information, access user accounts, execute OS-level commands, or take full control over the device. The following versions of Anjvision YSSD-RTMP-H5 are affected: YSSD-RTMP-H5 firmware 3.3.2.4_build_2024-12-26 (CVE-2026-100291, CVE-2026-100292, CVE-2026-100293, CVE-2026-100294, CVE-2026-100295, CVE-2026-100296, CVE-2026-100297, CVE-2026-100298, CVE-2026-100299) CVSS Vendor Equipment Vulnerabilities v3 9.8 Anjvision Anjvision YSSD-RTMP-H5 Initialization of a Resource with an Insecure Default, Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection'), Improper Verification of Cryptographic Signature, Use of Hard-coded Credentials, Active Debug Code, Improper Check for Unusual or Exceptional Conditions, Server-Side Request Forgery (SSRF), Insufficiently Protected Credentials, Use of Weak Credentials Background Critical Infrastructure Sectors: Commercial Facilities Countries/Areas Deployed: Worldwide Company Headquarters Location: China Vulnerabilities Expand All + CVE-2026-100291 In Anjvision YSSD‑RTMP‑H5 firmware version 3.3.2.4, several ONVIF service endpoints process management requests without enforcing required authentication. This could allow an unauthorized attacker to access sensitive device operations. View CVE Details Affected Products Anjvision YSSD-RTMP-H5 Vendor:Anjvision Product Version:Anjvision YSSD-RTMP-H5 firmware: 3.3.2.4_build_2024-12-26 Product Status:known_affected Remediations No fix plannedAnjvision has not responded to requests to work with CISA to mitigate these vulnerabilities. Users of affected versions of YSSD-RTMP-H5 are invited to contact Anjvision customer support for additional information http://www.anjvision.com/problem/list-129-cn.html . Relevant CWE: CWE-1188 Initialization of a Resource with an Insecure Default Metrics CVSS Version Base Score Base Severity Vector String 3.1 9.8 CRITICAL CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H 4.0 9.3 CRITICAL CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVE-2026-100292 In Anjvision YSSD‑RTMP‑H5 firmware version 3.3.2.4, a hidden debug interface can be enabled through an authenticated request, allowing additional commands to be sent to a backend service. Once active, this pathway can unintentionally expose system‑level functionality that could be misused if crafted inputs reach the underlying command handler. View CVE Details Affected Products Anjvision YSSD-RTMP-H5 Vendor:Anjvision Product Version:Anjvision YSSD-RTMP-H5 firmware: 3.3.2.4_build_2024-12-26 Product Status:known_affected Remediations No fix plannedAnjvision has not responded to requests to work with CISA to mitigate these vulnerabilities. Users of affected versions of YSSD-RTMP-H5 are invited to contact Anjvision customer support for additional information http://www.anjvision.com/problem/list-129-cn.html . Relevant CWE: CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') Metrics CVSS Version Base Score Base Severity Vector String 3.1 8.8 HIGH CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H 4.0 8.7 HIGH CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVE-2026-100293 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. View CVE Details Affected Products Anjvision YSSD-RTMP-H5 Vendor:Anjvision Product Version:Anjvision YSSD-RTMP-H5 firmware: 3.3.2.4_build_2024-12-26 Product Status:known_affected Remediations No fix plannedAnjvision has not responded to requests to work with CISA to mitigate these vulnerabilities. Users of affected versions of YSSD-RTMP-H5 are invited to contact Anjvision customer support for additional information http://www.anjvision.com/problem/list-129-cn.html . Relevant CWE: CWE-347 Improper Verification of Cryptographic Signature Metrics CVSS Version Base Score Base Severity Vector String 3.1 8.8 HIGH CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H 4.0 8.7 HIGH CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVE-2026-100294 In Anjvision YSSD‑RTMP‑H5 firmware version 3.3.2.4, the firmware embeds hardcoded cloud‑API credentials that are shared across deployed devices. Anyone obtaining the public firmware package can reuse these values to interact with the cloud service in ways not intended for normal operation. View CVE Details Affected Products Anjvision YSSD-RTMP-H5 Vendor:Anjvision Product Version:Anjvision YSSD-RTMP-H5 firmware: 3.3.2.4_build_2024-12-26 Product Status:known_affected Remediations No fix plannedAnjvision has not responded to requests to work with CISA to mitigate these vulnerabilities. Users of affected versions of YSSD-RTMP-H5 are invited to contact Anjvision customer support for additional information http://www.anjvision.com/problem/list-129-cn.html . Relevant CWE: CWE-798 Use of Hard-coded Credentials Metrics CVSS Version Base Score Base Severity Vector String 3.1 7.5 HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N 4.0 8.7 HIGH CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N CVE-2026-100295 In Anjvision YSSD‑RTMP‑H5 firmware version 3.3.2.4, an internal debug interface can be enabled through an undocumented pathway, exposing functions not intended for normal operation. When activated, this interface allows actions that could unintentionally provide elevated system access. View CVE Details Affected Products Anjvision YSSD-RTMP-H5 Vendor:Anjvision Product Version:Anjvision YSSD-RTMP-H5 firmware: 3.3.2.4_build_2024-12-26 Product Status:known_affected Remediations No fix plannedAnjvision has not responded to requests to work with CISA to mitigate these vulnerabilities. Users of affected versions of YSSD-RTMP-H5 are invited to contact Anjvision customer support for additional information http://www.anjvision.com/problem/list-129-cn.html. Relevant CWE: CWE-489 Active Debug Code Metrics CVSS Version Base Score Base Severity Vector String 3.1 6.3 MEDIUM CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L 4.0 7.1 HIGH CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N CVE-2026-100296 In Anjvision YSSD-RTMP-H5 firmware version 3.3.2.4, an empty-body POST to /setUserConfig, dispatched through the web server's SOAP-RPC handler, silently downgrades the administrator password to the default value and corrupts the in-memory authentication state until the device reloads. The handler does not verify the session's privilege level, so any authenticated user can trigger it. View CVE Details Affected Products Anjvision YSSD-RTMP-H5 Vendor:Anjvision Product Version:Anjvision YSSD-RTMP-H5 firmware: 3.3.2.4_build_2024-12-26 Product Status:known_affected Remediations No fix plannedAnjvision has not responded to requests to work with CISA to mitigate these vulnerabilities. Users of affected versions of YSSD-RTMP-H5 are invited to contact Anjvision customer support for additional information http://www.anjvision.com/problem/list-129-cn.html. Relevant CWE: CWE-754 Improper Check for Unusual or Exceptional Conditions Metrics CVSS Version Base Score Base Severity Vector String 3.1 8.1 HIGH CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H 4.0 7.2 HIGH CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N CVE-2026-100297 In Anjvision YSSD‑RTMP‑H5 firmware version 3.3.2.4, an unauthenticated network check function can be triggered to probe arbitrary hosts from the device's internal network. This may expose internal information or leak data via DNS queries. View CVE Details Affected Products Anjvision Y

Indicators of Compromise

• cve — CVE-2026-100291
• cve — CVE-2026-100292
• cve — CVE-2026-100293
• cve — CVE-2026-100294
• cve — CVE-2026-100295
• cve — CVE-2026-100296
• cve — CVE-2026-100297
• cve — CVE-2026-100298
• cve — CVE-2026-100299

Entities