CVE-2025-7758

moderate-risk
Published 2025-07-17

A vulnerability, which was classified as critical, has been found in TOTOLINK T6 up to 4.1.5cu.748_B20211015. Affected by this issue is the function setDiagnosisCfg of the file /cgi-bin/cstecgi.cgi of the component HTTP POST Request Handler. The manipulation of the argument ip leads to buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used.

Do I need to act?

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0.60% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
8
CVSS 8.8/10 High
NETWORK / LOW complexity

Affected Products (1)

Affected Vendors

Totolink

References (7)

Exploit https://github.com/AnduinBrian/Public/blob/main/Totolink%20T6/Vuln/3.md
Exploit https://github.com/AnduinBrian/Public/blob/main/Totolink%20T6/Vuln/3.md#poc
Permissions Required https://vuldb.com/?ctiid.316748
Third Party Advisory https://vuldb.com/?id.316748
Third Party Advisory https://vuldb.com/?submit.615734
Product https://www.totolink.net/
Exploit https://github.com/AnduinBrian/Public/blob/main/Totolink%20T6/Vuln/3.md
37
/ 100
moderate-risk
Severity 30/34 · Critical
Exploitability 2/34 · Minimal
Exposure 5/34 · Minimal