Buffer Overflow Vulnerability in TL-MR6400 v7 by TP-Link
CVE-2026-17250

8.5HIGH

Key Information:

Vendor
CVE Published:
21 August 2026

What is CVE-2026-17250?

A stack-based buffer overflow vulnerability has been identified in the firmware update process of TL-MR6400 v7. This flaw arises from the unsafe handling of attacker-supplied metadata embedded within firmware images. Exploiting this vulnerability could enable an authenticated attacker to corrupt memory and execute arbitrary code, posing a significant risk to the integrity and security of the affected device. Users are strongly advised to apply security patches available from TP-Link to mitigate this risk.

Affected Version(s)

TL-MR6400 v7.0 Linux 0 < 1.9.0 Build 260714

References

CVSS V4

Score:
8.5
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Adjacent Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Rui Cheng Yu (Hina)
.