Medium severity · published May 26, 2026
CVE-2026-9533
Totolink CA750-PoE Setting cstecgi.cgi recvUpgradeNewFw os command injection
6.3
CVSS
10.4%
EPSS
No
On KEV
Description
A vulnerability was detected in Totolink CA750-PoE 6.2c.510. The impacted element is the function recvUpgradeNewFw of the file /cgi-bin/cstecgi.cgi of the component Setting Handler. Performing a manipulation of the argument fwUrl/magicid results in os command injection. It is possible to initiate the attack remotely. The exploit is now public and may be used.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)10.4% · higher than 96% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CA
CA750-PoE · Totolink
6.2c.510 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-9533
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-9533
github.com
https://github.com/wudipjq/my_vuln/blob/main/totolink4/vuln_56/56.md
vuldb.com
https://vuldb.com/submit/813937
vuldb.com
https://vuldb.com/vuln/365560
vuldb.com
https://vuldb.com/vuln/365560/cti
www.totolink.net
https://www.totolink.net/
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