CVE-2026-86299CWE-77CWE-78

Linksys RE7000 PingTest json.cgi platform_event_pingTest os command injection

Critical · published September 7, 2026

CVSS v3.1
9.9
EPSS
—
In the wild
Unconfirmed
What it is

A vulnerability was detected in Linksys RE7000 2.0.15. This affects the function platform_event_pingTest of the file /cgi-bin/json.cgi?PingTest of the component PingTest Handler. The manipulation of the argument pingTestIp/pingTestPktSize/pingTestTimes results in os command injection. The attack can be launched remotely. The exploit is now public and may be used.

The record
Technical detail
CVSS v3.1
9.9 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R
CVSS v4.0
9.4 · CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P
EPSS
Not scored
Weaknesses
CWE-77 · Improper Neutralization of Special Elements used in a Command ('Command Injection'); CWE-78 · Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Published
2026-09-07T11:15Z
Timeline
  • 07 SEP 11:15Z
    Linksys RE7000 PingTest json.cgi platform_event_pingTest os command injection
    cvelistv5