# CVE-2025-55972: Denial of service in n/a

> Remote attackers can cause a TCL Smart TV to become unresponsive by flooding its UPnP endpoint with malformed SOAP requests, requiring the attack to stop for recovery.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 3 Oct 2025
- **Updated:** 3 Oct 2025
- **Also known as:** GHSA-88mp-pm8g-wwcf

## What is CVE-2025-55972?

CVE-2025-55972 is a high-severity denial of service vulnerability in n/a, published on 3 Oct 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

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.

Weakness: CWE-400 (Uncontrolled Resource Consumption)

## Which versions are affected by CVE-2025-55972?

It affects 1 product.


Products: Tcl 65c655 Firmware.

## How do I fix CVE-2025-55972?

No fix has been published for CVE-2025-55972 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-55972 being exploited?

There is no known exploitation of CVE-2025-55972 in the wild and no public exploit code.

Public exploit code:

- A TCL Smart TV running a vulnerable UPnP/DLNA MediaRenderer implementation is affected by a remote, unauthenticated Denial of Service (DoS). (github_poc): https://github.com/Szym0n13k/CVE-2025-55972-Remote-Unauthenticated-Denial-of-Service-DoS-in-TCL-Smart-TV-UPnP-DLNA-AVTransport

## Other vulnerabilities in n/a

- [CVE-2025-55971](https://insights.sbomify.com/CVE-2025-55971/): Server-side request forgery in n/a (medium 4.7)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-55972 and fix it if it is affected.

What it is: CVE-2025-55972 is a high-severity denial of service vulnerability in n/a, published on 3 Oct 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2025-55972 in the wild and no public exploit code.

Affected product: n/a. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2025-55972/ (Markdown: https://insights.sbomify.com/CVE-2025-55972/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-55972
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-55972
- OSV: https://osv.dev/vulnerability/CVE-2025-55972

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-55972/
Summaries are generated and may contain mistakes; the official description above is the record.