Critical severity · published Jun 25, 2025
CVE-2025-6621
TOTOLINK CA300-PoE ap.so QuickSetting os command injection
9.8
CVSS
2.4%
EPSS
No
On KEV
Description
A vulnerability classified as critical has been found in TOTOLINK CA300-PoE 6.2c.884. This affects the function QuickSetting of the file ap.so. The manipulation of the argument hour/minute leads to os command injection. It is possible to initiate the attack 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)2.4% · higher than 84% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CA
CA300-PoE · TOTOLINK
6.2c.884 · source: vendor
CF
Ca300-poe Firmware · Totolink
6.2c.884 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-6621
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-6621
Exploit
https://github.com/wudipjq/my_vuln/blob/main/totolink4/vuln_47/47.md
Exploit
https://github.com/wudipjq/my_vuln/blob/main/totolink4/vuln_47/47.md#poc
Permissions Required
https://vuldb.com/?ctiid.313839
Third Party Advisory
https://vuldb.com/?id.313839
Third Party Advisory
https://vuldb.com/?submit.602266
Product
https://www.totolink.net/
More from CA300-PoE
9.8
CVE-2025-6620
TOTOLINK CA300-PoE upgrade.so setUpgradeUboot os command injection
9.8
CVE-2025-6619
TOTOLINK CA300-PoE upgrade.so setUpgradeFW os command injection
9.8
CVE-2025-6618
TOTOLINK CA300-PoE wps.so SetWLanApcliSettings os command injection
8.8
CVE-2024-7217
TOTOLINK CA300-PoE cstecgi.cgi loginauth buffer overflow