EUVD-2026-89366
GHSA-x4gx-cgh5-8gqx
Severity by source
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Remote unauthenticated ONVIF requests with no user interaction (AV:N/AC:L/PR:N/UI:N); missing auth grants full read/control of device operations, so C/I/A all High; no cross-component scope change.
Primary rating from Vendor (icscert).
CVSS VectorVendor: icscert
Lifecycle Timeline
6DescriptionCVE.org
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.
AnalysisAI
Unauthenticated ONVIF service endpoints in Anjvision YSSD-RTMP-H5 cameras running firmware 3.3.2.4 fail to enforce authentication on management requests, letting any attacker who can route to the device invoke sensitive device operations directly. No credentials, user interaction, or non-default configuration are required - the CVSS v4.0 vector (AV:N/AC:L/AT:N/PR:N/UI:N) confirms this is a remotely reachable, unauthenticated flaw in the default request-handling path, and the independent assessment rates it a genuine high-priority issue with high confidentiality, integrity, and availability impact. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires network reachability to the affected ONVIF service endpoints on an Anjvision YSSD-RTMP-H5 camera running firmware 3.3.2.4; the specific ONVIF management endpoints fail to enforce authentication, so any attacker who can send SOAP requests to them succeeds. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | This is a genuine high-priority issue, not a high-CVSS-but-low-real-risk case. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | No vendor-released patch has been identified at time of analysis, so remediation must begin by contacting Anjvision and monitoring CISA ICS advisory ICSA-26-272-05 (https://www.cisa.gov/news-events/ics-advisories/icsa-26-272-05) for a fixed firmware version before upgrading. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory every Anjvision YSSD-RTMP-H5 camera running firmware 3.3.2.4, determine which are internet-exposed, VPN-reachable, or on shared/guest network segments, and immediately block inbound network access to their ONVIF service management interfaces at perimeter firewalls and routers; remove any port-forwarding, NAT, or UPnP rules that expose these devices and isolate the cameras onto a dedicated VLAN with deny-by-default egress. …
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