CVE-2026-17250

Authenticated Remote Code Execution via Stack-Based Buffer Overflow in Firmware Update Handling

Published Aug 21, 2026 CVSS 4.0 · 8.5 High EPSS < 1% KEV · Not listed
Description
A
stack-based buffer overflow vulnerability exists in the firmware update
functionality of TL-MR6400 v7 due to unsafe processing of
attacker-controlled metadata within a firmware image.





Successful
exploitation may allow an authenticated attacker to trigger memory corruption
and execute arbitrary code on the affected device.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Tp-link
Tp-link tl-mr6400 V7
Vendors & Products Tp-link
Tp-link tl-mr6400 V7
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description A stack-based buffer overflow vulnerability exists in the firmware update functionality of TL-MR6400 v7 due to unsafe processing of attacker-controlled metadata within a firmware image. Successful exploitation may allow an authenticated attacker to trigger memory corruption and execute arbitrary code on the affected device.
Title Authenticated Remote Code Execution via Stack-Based Buffer Overflow in Firmware Update Handling
Weaknesses CWE-121
References
Metrics cvssV4_0

{'score': 8.5, 'vector': 'CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
TPLink
Published
Updated
Aug 25, 2026, 3:56 AM
Reserved
Jul 24, 2026, 10:03 PM
Status
Awaiting Analysis
Published
Aug 21, 2026, 6:16 PM
Modified
Oct 14, 2026, 7:10 PM