CVE-2025-5901 json
TOTOLINK T10 POST Request cstecgi.cgi UploadCustomModule buffer overflow
published 2025-06-09 16 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-17591
- cvss
- 8.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 6.9%
- EPSS 6.9% chance of exploitation in 30 days, percentile 94%
- public exploits
- 0
- none known
Summary
A vulnerability has been found in TOTOLINK T10 4.1.8cu.5207 and classified as critical. This vulnerability affects the function UploadCustomModule of the file /cgi-bin/cstecgi.cgi of the component POST Request Handler. The manipulation of the argument File leads to buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- total
- Assessed
- 16 mo ago
Exploit prediction
6.88% chance of exploitation in the next 30 days, higher than 94% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- candle-throne-f75.notion.site https://candle-throne-f75.notion.site/TOTOLINK-T10-UploadCustomModule-20bdf0aa118580d59961cd545582c118 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 8.7 | CVSS: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 |
| CNA | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R |
| CNA | 3.0 | 8.8 | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R |
| CNA | 2.0 | 9.0 | AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR |
| CNA | 4.0 | 7.4 | CVSS: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/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
| CNA | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| CNA | 2.0 | 9.0 | AV:N/AC:L/Au:S/C:C/I:C/A:C |
Affected products
- TOTOLINK T10
Classification
References
-
candle-throne-f75.notion.site
/TOTOLINK-T10-UploadCustomModule-20bdf0aa118580d59961cd545582c118
exploit, third-party-advisory
-
vuldb.com
/?id.311674
vdb-entry, technical-description, third-party-advisory
-
vuldb.com
/?ctiid.311674
signature, permissions-required, vdb-entry
-
vuldb.com
/?submit.592243
third-party-advisory, vdb-entry
-
totolink.net
/
product
Sources
- CVE List CVE-2025-5901
- NVD CVE-2025-5901
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.