Critical severity · published Jun 25, 2025
CVE-2025-6620
TOTOLINK CA300-PoE upgrade.so setUpgradeUboot os command injection
9.8
CVSS
2.4%
EPSS
No
On KEV
Description
A vulnerability was found in TOTOLINK CA300-PoE 6.2c.884. It has been rated as critical. Affected by this issue is the function setUpgradeUboot of the file upgrade.so. The manipulation of the argument FileName leads to os 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)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-2025-6620
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-6620
Exploit
https://github.com/wudipjq/my_vuln/blob/main/totolink4/vuln_46/46.md
Exploit
https://github.com/wudipjq/my_vuln/blob/main/totolink4/vuln_46/46.md#poc
Permissions Required
https://vuldb.com/?ctiid.313838
Third Party Advisory
https://vuldb.com/?id.313838
Third Party Advisory
https://vuldb.com/?submit.602265
Product
https://www.totolink.net/
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