CVE-2026-76651

Technical Description

A buffer

overflow vulnerability exists in the embedded HTTP service in TL-WR841N v14 when processing

multipart/form-data requests. Insufficient validation of an attacker-controlled

boundary parameter may allow a remote unauthenticated attacker to submit a

crafted request that corrupts memory by overwriting data beyond the bounds of

an internal buffer.

Successful

exploitation may result in modification or corruption of process memory,

potentially leading to undefined application behavior. Arbitrary code

execution, information disclosure, and denial-of-service conditions have not

been demonstrated.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References