CVE-2025-5000
Published: 20 May 2025
Summary
CVE-2025-5000 is a medium-severity Injection (CWE-74) vulnerability in Linksys Fgw3000-Ah Firmware. Its CVSS base score is 5.3 (Medium).
Operationally, ranked in the top 16.2% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
A vulnerability classified as command injection affects the Linksys FGW3000-AH and FGW3000-HK routers up to firmware version 1.0.17.000000. The issue resides in the control_panel_sw function within the /cgi-bin/sysconf.cgi file of the HTTP POST Request Handler component, where unsanitized input to the filename argument enables arbitrary command execution.
An authenticated remote attacker can supply a crafted filename value in an HTTP POST request to the affected endpoint, resulting in execution of operating-system commands on the device. The attack requires low privileges and no user interaction, and a public exploit for this vector has already been disclosed.
No vendor advisory or patch addressing the flaw is referenced in available sources, and Linksys did not respond to early disclosure notification. The associated EPSS score has remained flat at 0.0195 with no material increase since publication.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-15958
Vulnerability details
A vulnerability was found in Linksys FGW3000-AH and FGW3000-HK up to 1.0.17.000000. It has been classified as critical. This affects the function control_panel_sw of the file /cgi-bin/sysconf.cgi of the component HTTP POST Request Handler. The manipulation of the argument filename…
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leads to command injection. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Developer assessments and testing (including injection-focused techniques) identify improper neutralization of special elements, and the verifiable flaw remediation corrects them pre-deployment.
Identifies indicators of injection attacks (command, SQL, LDAP, etc.) via anomaly and attack monitoring.