High severity · published Aug 19, 2026
CVE-2026-8619
Unauthenticated Denial-of-Service Vulnerability in HTTP Service in TP-Link TL-MR100, TL-MR150, TL-MR6400 and Archer MR600
7.5
CVSS
0.9%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.9% · higher than 59% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AM
Archer MR600 v2 · TP-Link Systems Inc
before Archer MR600(EU)_V2_1.10.0 Build 260618 · source: vendor
TV
TL-MR100 v3.2 · TP-Link Systems Inc.
before TL-MR100(EU)_V3.20_1.3.0 Build 260609 Rel.49957n · source: vendor
TV
TL-MR150 v.3.2 · TP-Link Systems Inc.
before TL-MR150(EU)_V3.20_1.3.0 Build 260720 Rel.59727n · source: vendor
TV
TL-MR6400 v8.0 · TP-Link Systems Inc.
before TL-MR6400(EN)_V8_1.5.0 Build 260610 Rel.67978n · source: vendor
AM
Archer Mr600 Firmware · Tp-link
before 1.10.0 · source: NVD
TF
Tl-mr100 Firmware · Tp-link
before 1.3.0 · source: NVD
TF
Tl-mr150 Firmware · Tp-link
before 1.3.0 · source: NVD
TF
Tl-mr6400 Firmware · Tp-link
before 1.5.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-8619
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-8619
Product
https://www.tp-link.com/en/support/download/archer-mr600/v2/#Firmware
Product
https://www.tp-link.com/en/support/download/tl-mr100/v3.20/#Firmware
Product
https://www.tp-link.com/en/support/download/tl-mr150/v3.20/#Firmware
Product
https://www.tp-link.com/en/support/download/tl-mr6400/v8/#Firmware
Vendor Advisory
https://www.tp-link.com/us/support/faq/5253/
More from Archer MR600 v2
6.9
CVE-2026-12339
Authenticated Arbitrary File Write Vulnerability in multiple devices