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.
Published: 2026-08-07
Score: 6.8 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Mon, 10 Aug 2026 19:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Sat, 08 Aug 2026 21:00:00 +0000

Type Values Removed Values Added
First Time appeared Tp-link
Tp-link archer A6 V4
Vendors & Products Tp-link
Tp-link archer A6 V4

Fri, 07 Aug 2026 20:45:00 +0000

Type Values Removed Values Added
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.
Title Authenticated Denial-of-Service in HTTPD Service in TP-Link Archer A6
Weaknesses CWE-362
References
Metrics cvssV4_0

{'score': 6.8, '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'}


Subscriptions

Tp-link Archer A6 V4
cve-icon MITRE

Status: PUBLISHED

Assigner: TPLink

Published:

Updated: 2026-08-10T18:23:58.299Z

Reserved: 2026-05-19T16:30:33.339Z

Link: CVE-2026-9030

cve-icon Vulnrichment

Updated: 2026-08-10T17:28:51.496Z

cve-icon NVD

Status : Received

Published: 2026-08-07T21:17:30.370

Modified: 2026-08-10T19:17:36.480

Link: CVE-2026-9030

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-08T20:40:19Z

Weaknesses
  • CWE-362

    Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')