CVE-2026-17252: high-severity vulnerability in TP-Link Systems Inc. TL-MR6400 v7.0
Unauthenticated Denial of Service via Composed HTTP Parsing and Stack-Based Out-of-Bounds Write Vulnerability in TL-MR6400 Web Management Interface
Published · Updated
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.1epss 0.3%
A
stack-based out-of-bounds write vulnerability exists in the login request
handling functionality of the administrative web interface of TP-Link TL-MR6400 v7 routers. An unauthenticated adjacent attacker can trigger the vulnerability
by sending a specially crafted malformed HTTP request.
Successful
exploitation may cause the web service process to crash, resulting in a
denial-of-service condition and temporary loss of access to the router's web
management interface.
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Affected products
TP-Link Systems Inc. · TL-MR6400 v7.0Related CVEs — TP-Link Systems Inc. TL-MR6400 v7.0
In the same product, most dangerous first.