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CVE-2026-8619— Unauthenticated Denial-of-Service Vulnerability in HTTP Service in TP-Link TL-MR100, TL-MR150, TL-MR6400 and Archer MR600

Quick assessment

Affected
TP-Link Systems Inc. TL-MR100 v3.2
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.

在 TP-Link TL-MR100 v3.2、TL-MR150 v3.2、TL-MR6400 v8.0 和 Archer MR600 v2 中发现了一个未认证拒绝服务（DoS）漏洞，原因是未正确处理异常请求条件，可能导致空指针解引用（NULL pointer dereference）。 处于相邻网络的远程攻击者可以发送一个特制的 HTTP 请求，触发 HTTP 服务进程崩溃。 成功利用该漏洞可能导致 HTTP 服务崩溃，从而使基于 Web 的管理界面及依赖于 HTTP 的功能暂时不可用。

CVSS 7.1 · High EPSS 0.28% · P20

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service

Affected Version Matrix 4

VendorProduct Version RangeStatus
TP-Link Systems Inc Archer MR600 v2 < Archer MR600(EU)_V2_1.10.0 Build 260618 affected
TP-Link Systems Inc. TL-MR100 v3.2 < TL-MR100(EU)_V3.20_1.3.0 Build 260609 Rel.49957n affected
TP-Link Systems Inc. TL-MR150 v.3.2 < TL-MR150(EU)_V3.20_1.3.0 Build 260720 Rel.59727n affected
TP-Link Systems Inc. TL-MR6400 v8.0 < TL-MR6400(EN)_V8_1.5.0 Build 260610 Rel.67978n affected
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I. Basic Information for CVE-2026-8619

Vulnerability Information
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Vulnerability Title
Unauthenticated Denial-of-Service Vulnerability in HTTP Service in TP-Link TL-MR100, TL-MR150, TL-MR6400 and Archer MR600
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
空指针解引用
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
TP-Link Systems Inc. TL-MR100 v3.2 0 ~ TL-MR100(EU)_V3.20_1.3.0 Build 260609 Rel.49957n -
TP-Link Systems Inc. TL-MR150 v.3.2 0 ~ TL-MR150(EU)_V3.20_1.3.0 Build 260720 Rel.59727n -
TP-Link Systems Inc. TL-MR6400 v8.0 0 ~ TL-MR6400(EN)_V8_1.5.0 Build 260610 Rel.67978n -
TP-Link Systems Inc Archer MR600 v2 0 ~ Archer MR600(EU)_V2_1.10.0 Build 260618 -

II. Public POCs for CVE-2026-8619

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III. Intelligence Information for CVE-2026-8619

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Vendor Advisories for CVE-2026-8619 (1)

Vendor Pages for CVE-2026-8619 (4)

Same Patch Batch · TP-Link Systems Inc. · 2026-08-19 · 4 CVEs total

CVE-2026-75616 8.5 HIGH Command Injection in Router Web Management Interface
CVE-2026-75618 7.1 HIGH RTSP Null Pointer Dereference Denial-of-Service Vulnerability on TP-Link Tapo C100 and C10
CVE-2026-75619 6.9 MEDIUM RTSP Heap Buffer Overflow Denial-of-Service Vulnerability on TP-Link Tapo C100 and C101

IV. Related Vulnerabilities

Same vendor: TP-Link Systems Inc.
Same weakness: CWE-476

V. Comments for CVE-2026-8619

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