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CVE-2026-17250— Authenticated Remote Code Execution via Stack-Based Buffer Overflow in Firmware Update Handling

Quick assessment

Affected
TP-Link Systems Inc. TL-MR6400 v7.0
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

TL-MR6400 v7 的固件更新功能中存在一个基于栈的缓冲区溢出漏洞，这是由于对固件映像中由攻击者控制的元数据进行不安全处理所致。 成功利用此漏洞可能允许经过身份验证的攻击者触发内存损坏，并在受影响设备上执行任意代码。

CVSS 8.5 · High EPSS 0.19% · P9

Affected Version Matrix 1

VendorProduct Version RangeStatus
TP-Link Systems Inc. TL-MR6400 v7.0 < 1.9.0 Build 260714 affected
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I. Basic Information for CVE-2026-17250

Vulnerability Information
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Vulnerability Title
Authenticated Remote Code Execution via Stack-Based Buffer Overflow in Firmware Update Handling
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
栈缓冲区溢出
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
TP-Link Systems Inc. TL-MR6400 v7.0 0 ~ 1.9.0 Build 260714 -

II. Public POCs for CVE-2026-17250

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III. Intelligence Information for CVE-2026-17250

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Vendor Advisories for CVE-2026-17250 (1)

Vendor Pages for CVE-2026-17250 (1)

Same Patch Batch · TP-Link Systems Inc. · 2026-08-21 · 3 CVEs total

CVE-2026-17252 7.1 HIGH Unauthenticated Denial of Service via Composed HTTP Parsing and Stack-Based Out-of-Bounds
CVE-2026-17251 7.1 HIGH Unauthenticated Denial of Service via Null Pointer Dereference in HTTP Request Parsing

IV. Related Vulnerabilities

Same product: TL-MR6400 v7.0
Same vendor: TP-Link Systems Inc.
Same weakness: CWE-121

V. Comments for CVE-2026-17250

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