What is CVE-2026-86299?

CVE-2026-86299 is a critical-severity vulnerability in Linksys Re7000, classified under Command Injection. CVSS score: 9.9/10. Published 2026-09-07.

How severe is CVE-2026-86299?

Critical severity. CVSS v3 base score is 9.9 out of 10.

RCE in Linksys Re7000

CVE-2026-86299

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.

Vulnerability class: Command Injection (OS Command Injection)

CVSS v3 metric

CVSS v3 base score 9.9 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.

Affected products

Linksys Re7000 — versions 2.0.15

Weakness classification (CWE)

References

cna@vuldb.com (technical-description, vdb-entry)
cna@vuldb.com (signature, permissions-required)
cna@vuldb.com (third-party-advisory)
cna@vuldb.com (third-party-advisory)
cna@vuldb.com (exploit)
cna@vuldb.com (product)

Frequently asked questions

What is CVE-2026-86299?: CVE-2026-86299 is a critical-severity vulnerability in Linksys Re7000, classified under Command Injection. CVSS score: 9.9/10. Published 2026-09-07.
How severe is CVE-2026-86299?: Critical severity. CVSS v3 base score is 9.9 out of 10.