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)
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.037 (89.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 90th percentile — 89.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.020 · newest: 0.037 · change: +0.018
Affected products
- Linksys Re7000 — versions 2.0.15
Weakness classification (CWE)
References
- vuldb.com/vuln/399463 (technical-description, vdb-entry)
- vuldb.com/vuln/399463/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-86299 (third-party-advisory)
- vuldb.com/submit/906547 (third-party-advisory)
- github.com/limou89/somevul/blob/main/Linksys_RE7000_v2_PingTest_Command_Injecti… (exploit)
- www.linksys.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.