CVE-2026-8619

Unauthenticated Denial-of-Service Vulnerability in HTTP Service in TP-Link TL-MR100, TL-MR150, TL-MR6400 and Archer MR600

State: Published
Severity: 7.1 High
Published: Aug 19, 2026
Updated: Aug 20, 2026
Reserved: May 14, 2026

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Description

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.

Scores

CVSS	Score	Vector	Source
4.0	7.1 High	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	TPLink

Weaknesses

CWE-476 NULL pointer dereference

Affected Products

Product	Versions
TL-MR100 v3.2TP-Link Systems Inc.	before TL-MR100(EU)_V3.20_1.3.0 Build 260609 Rel.49957nAffected
TL-MR150 v.3.2TP-Link Systems Inc.	before TL-MR150(EU)_V3.20_1.3.0 Build 260720 Rel.59727nAffected
TL-MR6400 v8.0TP-Link Systems Inc.	before TL-MR6400(EN)_V8_1.5.0 Build 260610 Rel.67978nAffected
Archer MR600 v2TP-Link Systems Inc	before Archer MR600(EU)_V2_1.10.0 Build 260618Affected

References

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