An unauthenticated denial-of-service vulnerability was identified in TP-Link TL-MR100 v3.2, TL-MR150 v3.2, TL-MR6400 v8.0 and Archer MR600 v2, due to improper handling of exceptional request conditions that may lead to a NULL pointer dereference. A remote attacker on an adjacent network can send a specially crated HTTP request to trigger a crash of the HTTP service process. Successful exploitation may cause the HTTP service to crash, making the web management interface and HTTP-dependent functionality temporarily unavailable.
https://www.tp-link.com/us/support/faq/5253/
https://www.tp-link.com/en/support/download/tl-mr6400/v8/#Firmware
https://www.tp-link.com/en/support/download/tl-mr150/v3.20/#Firmware
https://www.tp-link.com/en/support/download/tl-mr100/v3.20/#Firmware
https://www.tp-link.com/en/support/download/archer-mr600/v2/#Firmware
Published: 2026-08-20
Updated: 2026-08-20
Base Score: 5
Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P
Severity: Medium
Base Score: 7.5
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Severity: High
Base Score: 7.1
Vector: 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
Severity: High