Critical severity · published May 20, 2025
CVE-2025-4999
A vulnerability was found in Linksys FGW3000-AH and FGW3000-HK up to 1.0.17.000000 and classified as critical
9.8
CVSS
6.9%
EPSS
No
On KEV
Description
A vulnerability was found in Linksys FGW3000-AH and FGW3000-HK up to 1.0.17.000000 and classified as critical. Affected by this issue is the function sub_4153FC of the file /cgi-bin/sysconf.cgi of the component HTTP POST Request Handler. The manipulation of the argument supplicant_rnd_id_en leads to command injection. The attack may be launched 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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)6.9% · higher than 94% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FF
Fgw3000-ah Firmware · Linksys
through 1.0.17.000000 · source: NVD
FF
Fgw3000-hk Firmware · Linksys
through 1.0.17.000000 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-4999
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-4999
Broken Link
https://github.com/CH13hh/tmp_store_cc/blob/main/FGW3000/1.md
Permissions Required
https://vuldb.com/?ctiid.309650
Third Party Advisory
https://vuldb.com/?id.309650
Third Party Advisory
https://vuldb.com/?submit.565909
Product
https://www.linksys.com/
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9.8
CVE-2025-5000
A vulnerability was found in Linksys FGW3000-AH and FGW3000-HK up to 1.0.17.000000