Critical severity · published May 18, 2025
CVE-2025-4849
TOTOLINK N300RH cstecgi.cgi CloudACMunualUpdateUserdata command injection
9.8
CVSS
1.5%
EPSS
No
On KEV
Description
A vulnerability was found in TOTOLINK N300RH 6.1c.1390_B20191101. It has been rated as critical. Affected by this issue is the function CloudACMunualUpdateUserdata of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument url leads to command injection. The attack may be launched remotely. The exploit has been disclosed to the public and may be used.
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)1.5% · higher than 75% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
N3
N300RH · TOTOLINK
6.1c.1390_B20191101 · source: vendor
NF
N300rh Firmware · Totolink
6.1c.1390_b20191101 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-4849
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-4849
Broken Link
https://github.com/CH13hh/tmp_store_cc/blob/main/tt/ta/m1.md
Permissions Required
https://vuldb.com/?ctiid.309320
Third Party Advisory
https://vuldb.com/?id.309320
Third Party Advisory
https://vuldb.com/?submit.575072
Product
https://www.totolink.net/
More from N300RH
9.8
CVE-2025-4851
TOTOLINK N300RH cstecgi.cgi setUploadUserData command injection
8.8
CVE-2025-6400
TOTOLINK N300RH HTTP POST Message formPortFw buffer overflow
6.3
CVE-2025-4850
TOTOLINK N300RH cstecgi.cgi setUnloadUserData command injection
3.5
CVE-2025-6401
TOTOLINK N300RH HTTP POST Message formFilter denial of service