CVE-2026-86299: OS Command Injection in Linksys RE7000
Description
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.
CVSS v4.0
Score 9.4critical
Affected software
Linksys
RE7000
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability exists in the platform_event_pingTest function of the PingTest Handler component in Linksys RE7000 firmware version 2.0.15. By manipulating the arguments pingTestIp, pingTestPktSize, or pingTestTimes in the /cgi-bin/json.cgi?PingTest endpoint, an attacker can perform OS command injection remotely without user interaction or elevated privileges. The CVSS 4.0 score is 9.4, indicating critical severity with high impact on confidentiality, integrity, and availability. Public exploit code is available, but no known active exploitation in the wild has been reported.
Potential Impact
Successful exploitation allows remote attackers to execute arbitrary operating system commands on the affected device, potentially leading to full compromise of the router, including control over network traffic and device configuration. This can severely impact network security and availability.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no patch or official fix information is provided, users should monitor Linksys advisories for updates. Until a fix is available, restrict access to the vulnerable endpoint and consider disabling the PingTest feature if possible to reduce exposure.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-09-06T16:32:18.951Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6a9ea217acd9273b4988082b
Added to database: 09/07/2026, 11:37:59 UTC
Last enriched: 09/14/2026, 23:41:19 UTC
Last updated: 10/10/2026, 06:48:19 UTC
Views: 78
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