Medium severity · published May 26, 2026
CVE-2026-9531
Totolink CA750-PoE Setting cstecgi.cgi setUpgradeUboot os command injection
6.3
CVSS
10.4%
EPSS
No
On KEV
Description
A weakness has been identified in Totolink CA750-PoE 6.2c.510. Impacted is the function setUpgradeUboot of the file /cgi-bin/cstecgi.cgi of the component Setting Handler. This manipulation of the argument FileName causes os command injection. The attack is possible to be carried out remotely. The exploit has been made available to the public and could be used for attacks.
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-2026-9531
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-9531
github.com
https://github.com/wudipjq/my_vuln/blob/main/totolink4/vuln_54/54.md
vuldb.com
https://vuldb.com/submit/813929
vuldb.com
https://vuldb.com/vuln/365558
vuldb.com
https://vuldb.com/vuln/365558/cti
www.totolink.net
https://www.totolink.net/
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