Unauthenticated Denial-of-Service Vulnerability in HTTP Service in TP-Link TL-MR100, TL-MR150, TL-MR6400 and Archer MR600
Summary
| CVE | CVE-2026-8619 |
|---|---|
| State | PUBLISHED |
| Assigner | TPLink |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-08-20 00:16:53 UTC |
| Updated | 2026-08-20 17:19:49 UTC |
| 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. |
Risk And Classification
Primary CVSS: v4.0 7.1 HIGH from f23511db-6c3e-4e32-a477-6aa17d310630
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
EPSS: 0.002810000 probability, percentile 0.207130000 (date 2026-08-23)
Problem Types: CWE-476 | CWE-476 CWE-476 NULL pointer dereference
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 4.0 | f23511db-6c3e-4e32-a477-6aa17d310630 | Secondary | 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/E:X/C... |
| 4.0 | CNA | CVSS | 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 |
CVSS v4.0 Breakdown
Attack Vector
AdjacentAttack Complexity
LowAttack Requirements
NonePrivileges Required
NoneUser Interaction
NoneConfidentiality
NoneIntegrity
NoneAvailability
HighSub Conf.
NoneSub Integrity
NoneSub Availability
NoneCVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | TP-Link Systems Inc. | TL-MR100 V3.2 | affected TL-MR100(EU)_V3.20_1.3.0 Build 260609 Rel.49957n custom | Linux |
| CNA | TP-Link Systems Inc. | TL-MR150 V.3.2 | affected TL-MR150(EU)_V3.20_1.3.0 Build 260720 Rel.59727n custom | Linux |
| CNA | TP-Link Systems Inc. | TL-MR6400 V8.0 | affected TL-MR6400(EN)_V8_1.5.0 Build 260610 Rel.67978n custom | Linux |
| CNA | TP-Link Systems Inc | Archer MR600 V2 | affected Archer MR600(EU)_V2_1.10.0 Build 260618 custom | Linux |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| www.tp-link.com/en/support/download/tl-mr150/v3.20 | f23511db-6c3e-4e32-a477-6aa17d310630 | www.tp-link.com | |
| www.tp-link.com/en/support/download/tl-mr6400/v8 | f23511db-6c3e-4e32-a477-6aa17d310630 | www.tp-link.com | |
| www.tp-link.com/en/support/download/archer-mr600/v2 | f23511db-6c3e-4e32-a477-6aa17d310630 | www.tp-link.com | |
| www.tp-link.com/en/support/download/tl-mr100/v3.20 | f23511db-6c3e-4e32-a477-6aa17d310630 | www.tp-link.com | |
| www.tp-link.com/us/support/faq/5253 | f23511db-6c3e-4e32-a477-6aa17d310630 | www.tp-link.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Vendor Comments And Credit
Discovery Credit
CNA: haehet (en)
There are currently no legacy QID mappings associated with this CVE.