CVE-2026-9030

MEDIUM
MEDIUM Priority: 0.01 BB Relevance: 44/100
Published: 2026-08-07 Modified: 2026-10-24 First seen: 2026-10-29 Status: active

Attack Surface

Adjacent Low Complexity No Interaction

CVSS Vector Breakdown

AV: Adjacent
AC: Low
PR: High
UI: None
S: X
AT: None
VC: None
VI: None
VA: High

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.

Weakness Classification (1)

Bug Bounty Relevance

44 / 100
✓ Low complexity
✓ No user interaction

CVSS Score

6.8 / 10.0 v4.0
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/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 — Exploitation Probability

0.20%
Raw Score 0.001970
Percentile 9.5%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00197
2026-10-28
0.00197

Intelligence Sources

nvd ref →