Authenticated command execution via unvalidated ping parameters
Published Jun 2, 2025 · Updated Jun 2, 2025
OS command injection in Linksys RE-series extenders allows remote authenticated users to execute arbitrary commands through a web request. The RP_pingGatewayByBBS handler in mod_form.so passes the ip, nm, and gw form values into an operating-system command without validating their contents. A valid session cookie is required by the published request, and successful injection can start a BusyBox Telnet service that exposes a shell.
Summary
What happened
OS command injection in Linksys RE-series extenders allows remote authenticated users to execute arbitrary commands through a web request. The RP_pingGatewayByBBS handler in mod_form.so passes the ip, nm, and gw form values into an operating-system command without validating their contents. A valid session cookie is required by the published request, and successful injection can start a BusyBox Telnet service that exposes a shell.
The record
- CVE
- CVE-2025-5442
- Published
- Jun 2, 2025
- Updated
- Jun 2, 2025
- Vendor
- Linksys
- Product
- RE6250
- Classifications
- CWE-78, CWE-77, T1059.004
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Jun 2, 2025CVE publishedPublication date reported by the CVE source.
- Jun 2, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=1.0.013.001
- Affected versionversion=1.0.04.001
- Affected versionversion=1.0.04.002
- Affected versionversion=1.1.05.003
- Affected versionversion=1.2.07.001
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- RP_pingGatewayByBBS BusyBox telnetd proof of conceptfunctional · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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