CVE-2025-3663 json
TOTOLINK A3700R Password cstecgi.cgi setWiFiEasyGuestCfg access control
published 2025-04-16 18 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-11470
- cvss
- 5.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 11.3%
- EPSS 11.3% chance of exploitation in 30 days, percentile 96%
- public exploits
- 0
- none known
Summary
A vulnerability, which was classified as critical, has been found in TOTOLINK A3700R 9.1.2u.5822_B20200513. This issue affects the function setWiFiEasyCfg/setWiFiEasyGuestCfg of the file /cgi-bin/cstecgi.cgi of the component Password Handler. The manipulation leads to improper access controls. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 18 mo ago
Exploit prediction
11.32% chance of exploitation in the next 30 days, higher than 96% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- lavender-bicycle-a5a.notion.site https://lavender-bicycle-a5a.notion.site/TOTOLINK-A3700R-setWiFiEasyCfg-1cb53a41781f809f807efe1284f5eb1a?pvs=4 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 6.9 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N |
| CNA | 3.1 | 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |
| CNA | 3.0 | 5.3 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |
| CNA | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:N/I:P/A:N |
| CNA | 4.0 | 6.9 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/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 |
| NVD | 3.1 | 8.2 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H |
Affected products
- TOTOLINK A3700R
Classification
References
-
lavender-bicycle-a5a.notion.site
/TOTOLINK-A3700R-setWiFiEasyCfg-1cb53a41781f809f807efe1284f5eb1a?pvs=4
exploit, third-party-advisory
-
vuldb.com
/?id.304841
vdb-entry, technical-description, third-party-advisory
-
vuldb.com
/?ctiid.304841
signature, permissions-required
-
vuldb.com
/?submit.551295
third-party-advisory, vdb-entry
-
totolink.net
/
product
Sources
- CVE List CVE-2025-3663
- NVD CVE-2025-3663
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