CVE-2025-7758
A vulnerability, which was classified as critical, has been found in TOTOLINK T6 up to 4.1.5cu.748_B20211015.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.99%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 4.0
- 7.4 HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
- EPSS
- 0.99% probability · 62th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-119, CWE-120
- Affected
- totolink/t6 firmware
- Source
- cna@vuldb.com
EPSS 1.0% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://github.com/AnduinBrian/Public/blob/main/Totolink%20T6/Vuln/3.mdExploit, Third Party Advisory
- https://github.com/AnduinBrian/Public/blob/main/Totolink%20T6/Vuln/3.md#pocExploit, Third Party Advisory
- https://vuldb.com/?ctiid.316748Permissions Required
- https://vuldb.com/?id.316748Third Party Advisory, VDB Entry
- https://vuldb.com/?submit.615734Third Party Advisory, VDB Entry
- https://www.totolink.net/Product
- https://github.com/AnduinBrian/Public/blob/main/Totolink%20T6/Vuln/3.mdExploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.