CVE-2026-8619

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.

CVSS 4.0

7.1CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

CVSS 3.1

7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS

0.9% chance of exploitation in the next 30 days; higher than 58% of CVEs (scores of 2026-10-26)

CWE

CWE-476

Published

2026-08-20

Modified

2026-10-27

Record from

the NVD, synced 2026-10-27

Affected

• tp-link:archer_mr600_firmware
• tp-link:tl-mr100_firmware
• tp-link:tl-mr150_firmware
• tp-link:tl-mr6400_firmware

References

• https://www.tp-link.com/en/support/download/archer-mr600/v2/#Firmware
• https://www.tp-link.com/en/support/download/tl-mr100/v3.20/#Firmware
• https://www.tp-link.com/en/support/download/tl-mr150/v3.20/#Firmware
• https://www.tp-link.com/en/support/download/tl-mr6400/v8/#Firmware
• https://www.tp-link.com/us/support/faq/5253/

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