Resource exhaustion in Tcl 65c655
CVE-2025-55972
A TCL Smart TV running a vulnerable UPnP/DLNA MediaRenderer implementation is affected by a remote, unauthenticated Denial of Service (DoS) condition. By sending a flood of malformed or oversized SetAVTransportURI SOAP requests to the UPnP control endpoint, an attacker can cause the device to become unresponsive. This denial persists as long as the attack continues and affects all forms of TV operation. Manual user control and even reboots do not restore functionality unless the flood stops.
Vulnerability class: DoS (Denial of Service)
EPSS: 0.005 (40.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Tcl 65c655
- Tcl 65c655_firmware
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (Exploit)
- cve@mitre.org (Third Party Advisory)
Frequently asked questions
- What is CVE-2025-55972?
- CVE-2025-55972 is a high-severity vulnerability in Tcl 65c655, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2025-10-03.
- How severe is CVE-2025-55972?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2025-55972 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.