HIGH 8.5 NVD
CVE-2026-121930
A weakness has been identified in Linksys WRT54GL 4.30.18. The affected element is the function system of the file apply.cgi of the component Ping Diagnostic. T
A weakness has been identified in Linksys WRT54GL 4.30.18. The affected element is the function system of the file apply.cgi of the component Ping Diagnostic. This manipulation of the argument ping_ip causes os command injection. The attack can be initiated remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way. This vulnerability only affects products that are no longer supported by the maintainer.
References
- https://github.com/Zimo-666/WRT54GL-cves/tree/main/CVE-TBD-ping-ip-command-injection
- https://vuldb.com/cve/CVE-2026-121930
- https://vuldb.com/submit/1024098
- https://vuldb.com/vuln/431042
- https://vuldb.com/vuln/431042/cti
This high severity vulnerability with a CVSS score of 8.5 was published on 2026-11-04 via NVD.
vulnfeed aggregates 18258 vulnerabilities from NVD, CISA KEV,
Ubuntu, Debian, Red Hat, Kubernetes, Exploit-DB, OSS-Security, GitHub and OpenStack — updated every 4 hours.