CVE-2026-17250: CWE-121 Stack-based buffer overflow in TP-Link Systems Inc. TL-MR6400 v7.0
Description
CVE-2026-17250 is a stack-based buffer overflow vulnerability in the firmware update functionality of TP-Link TL-MR6400 version 7.0. It arises from unsafe handling of attacker-controlled metadata within a firmware image. Exploitation requires authentication and can lead to memory corruption and arbitrary code execution on the device. The vulnerability has a high severity score of 8.5. No patch or official fix information is currently provided.
CVSS v4.0
Score 8.5high
Affected software
TP-Link Systems Inc.
TL-MR6400 v7.0
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-17250) affects TP-Link TL-MR6400 v7.0 and is caused by unsafe processing of metadata in the firmware update function, leading to a stack-based buffer overflow (CWE-121). An authenticated attacker can exploit this flaw to corrupt memory and execute arbitrary code on the device. The CVSS 4.0 vector indicates the attack requires adjacent network access, low attack complexity, no user interaction, and high privileges. The vulnerability is confirmed published but no patch or remediation details are available.
Potential Impact
Successful exploitation allows an authenticated attacker with high privileges to trigger memory corruption and execute arbitrary code on the affected TL-MR6400 v7.0 device. This could compromise device integrity and control.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or patch links are provided at this time.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- TPLink
- Date Reserved
- 2026-07-24T22:03:10.608Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6a888a87acd9273b4977388b
Added to database: 08/21/2026, 17:27:35 UTC
Last enriched: 09/10/2026, 17:37:05 UTC
Last updated: 10/05/2026, 18:48:17 UTC
Views: 63
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