Quick answers
- Is CVE-2026-76651 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-76651 being exploited in the wild.
- How severe is CVE-2026-76651?
- Informational severity, published 28 August 2026.
- Which products and versions are affected?
- TP-Link TL-WR841N v14.
- Is there a fix for CVE-2026-76651?
- 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-2026-76651 attacked?
- It is attacked over the network.
- Am I affected by CVE-2026-76651?
- Check whether you run TP-Link TL-WR841N 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 buffer overflow vulnerability exists in the HTTP service of TP-Link TL-WR841N v14 when processing multipart/form-data requests. The vulnerability stems from insufficient validation of the attacker-controlled boundary parameter, which allows an unauthenticated remote attacker to overwrite data beyond buffer bounds. The attack requires no authentication and is reachable over the network. Exploitation may result in memory corruption and undefined application behavior, though arbitrary code execution, information disclosure, and denial-of-service have not been demonstrated. No patch information is currently available.
Affected products
- TP-Link TL-WR841N v14
Timeline
- 2026-08-28: disclosed