CVE-2026-84425CWE-404

CVE-2026-84425

Medium · published September 2, 2026

CVSS v3.1
4.3
EPSS
0%
Percentile
39.7
In the wild
Unconfirmed
What it is

A vulnerability was found in zhayujie CowAgent up to 2.1.3. This impacts the function BrowserTool of the file agent/tools/browser/browser_tool.py of the component Browser Tool. Performing a manipulation results in denial of service. The attack can be initiated remotely. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.

The record
Technical detail
CVSS v3.1
4.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
CVSS v4.0
5.3 · CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P
EPSS
0.00471 · 39.7th percentile
Weakness
CWE-404 · Improper Resource Shutdown or Release
Published
2026-09-02T05:17Z
References (5)
https://github.com/hackerguopeng/cve/tree/main/CowAgent_Browser_Evaluate_Wait_DoS_Report · [email protected]https://vuldb.com/cve/CVE-2026-84425 · [email protected]https://vuldb.com/submit/884017 · [email protected]https://vuldb.com/vuln/397792 · [email protected]https://vuldb.com/vuln/397792/cti · [email protected]
EPSS history
Timeline
  • 03 SEP 03:32Z
    EPSS moved — → 0%
    epss
  • 02 SEP 00:15Z
    zhayujie CowAgent Browser Tool browser_tool.py BrowserTool denial of service
    cvelistv5