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Vulnerabilities CVE-2026-9030

CVE-2026-9030

Medium
Open
TLP:CLEAR

Authenticated Denial-of-Service in HTTPD Service in TP-Link Archer A6

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Description

A denial-of-service vulnerability exists in httpd service on Archer A6 v4 where the asynchronous systool instruction handlng path in httpd does not properly synchronize or safely manage concurrent systool operations.  By sending crafted systool instructions through the asynchronous request path, successful exploitation may cause the httpd process or device management service to crash and may result in temporary loss of access to the web management interface or device reboot.

Details

CVSS Score
6.8
EPSS Score
0.13%

3th percentile

CVSS Vector
CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Confidence
90%
Published
Aug 7, 2026
Last Modified
Aug 10, 2026
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