# CVE-2025-61498: Tenda AC8 buffer overflow in UPnP service

Source: https://junglewise.ai/threats/cve-2025-61498-tenda-ac8-buffer-overflow-in-upnp-service  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2025-10-30. Updated: 2026-07-05  
License: CC BY 4.0 with a link back

CVE-2025-61498 · Severity: high · CVSS 7.5 · Published 2025-10-30

A security vulnerability has been identified in the Tenda AC8 router, a device used to provide wireless internet connectivity. An attacker can send a specially crafted network packet to the device's UPnP service to cause it to crash or become unresponsive. This results in a denial-of-service, disrupting internet access for all connected users and requiring a manual restart of the hardware.

Technologies: [Tenda Ac8](https://junglewise.ai/threats/technologies/ac8), [Tenda Ac8 Firmware](https://junglewise.ai/threats/technologies/ac8-firmware). Vendors: [Tenda](https://junglewise.ai/threats/vendors/tenda).

## Quick answers

**Is CVE-2025-61498 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2025-61498 being exploited in the wild.

**How severe is CVE-2025-61498?** High severity, with a CVSS score of 7.5, published 30 October 2025.

**Which products and versions are affected?** Tenda Ac8 v03.03.10.01.

**Is there a fix for CVE-2025-61498?** 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-2025-61498 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2025-61498?** Check whether you run Tenda Ac8 or Tenda Ac8 Firmware 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

A stack-based buffer overflow (CWE-121) exists in the UPnP service of Tenda AC8 hardware running firmware version v03.03.10.01. The vulnerability is triggered when the service processes a specially crafted network packet, leading to memory corruption. This is a network-reachable exploit that requires no authentication or user interaction. Successful exploitation results in a Denial of Service (DoS) condition, crashing the service or the entire device. No official patch or mitigation was detailed in the advisory, though disabling UPnP is a standard workaround for such vulnerabilities.

## Affected products

- Tenda AC8 v03.03.10.01

## Timeline

- 2025-10-30: disclosed
- 2025-10-30: advisory

## References

- [https://github.com/sakshi-garg02/CVEs/tree/main/CVE-2025-61498](https://github.com/sakshi-garg02/CVEs/tree/main/CVE-2025-61498)

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