CVE-2025-3668: totolink a3700r_firmware Incorrect Privilege Assignment
Vulnerability summary
CVE-2025-3668 is a medium (CVSS 6.9) Incorrect Privilege Assignment vulnerability in totolink a3700r_firmware. EPSS estimates a 1.38% chance of exploitation in the next 30 days, higher than 71.8% of scored vulnerabilities. 1 public exploit is recorded.
Timeline
- 16-04-2025PublishedVulnerability first disclosed.
- 16-04-2025Last modifiedVulnerability information updated.
Description
A vulnerability was found in TOTOLINK A3700R 9.1.2u.5822_B20200513. It has been declared as critical. This vulnerability affects the function setScheduleCfg of the file /cgi-bin/cstecgi.cgi. The manipulation leads to improper access controls. The attack can 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.
CVSS metrics
7 scores · 2 sources · 4 versions- NVDNIST6.9MediumCVSS: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
- NVDNIST5.3MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
- NVDNIST5.0MediumAV:N/AC:L/Au:N/C:N/I:P/A:N
EPSS trend
Probability
1.38%
Chance of exploitation in the next 30 days
Percentile
72%
Versus all other CVEs
30-day change
0.00 pp
From 1.38% on 21-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundExploit Reference (lavender-bicycle-a5a.notion.site)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Totolink1 product
- a3700r_firmware9.1.2u.5822_B20200513 | 9.1.2u.5822_b20200513
1 vendor · 1 product
References
5 links- lavender-bicycle-a5a.notion.site/TOTOLINK-A3700R-setScheduleCfg-1cb53a41781f8042a841e2e19e010464ExploitThird Party Advisory
- www.totolink.netProduct