CVE-2026-9030 (GCVE-0-2026-9030)
Vulnerability from cvelistv5 – Published: 2026-08-07 20:38 – Updated: 2026-08-10 18:23
VLAI
EPSS
VEX
Title
Authenticated Denial-of-Service in HTTPD Service in TP-Link Archer A6
Summary
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.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-10 17:28 UTC
CWE
- CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://www.tp-link.com/us/support/download/arche… | patch |
| https://www.tp-link.com/en/support/download/arche… | patch |
| https://www.tp-link.com/en/support/faq/5234/ | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| TP-Link Systems Inc. | Archer A6 v4 |
Affected:
0 , < V4_1.15.10 Build 260625 Rel.25447
(custom)
|
guessed |
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Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
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- Confirmed: The vulnerability has been validated from an analyst's perspective.
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- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
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- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
How durations are calculated
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.