Vulnerability details

CVE-2026-93740

Totolink A3002MU

Totolink A3002MU formWlEncrypt buffer overflow

CVSS 4.0

10.0Critical

Official description

A vulnerability was identified in Totolink A3002MU Hh-B20211125.1046. Affected is the function formWlEncrypt of the file /boafrm/formWlEncrypt. The manipulation of the argument submit-url leads to buffer overflow. It is possible to initiate the attack remotely. The exploit is publicly available and might be used.

CVSS scores

Score	Version	Source	Vector
10.0Critical	4.0	CVEProject cvelistV5 (CNA) (VulDB)	`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P`
10.0Critical	3.1	CVEProject cvelistV5 (CNA) (VulDB)	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R`
10.0Critical	3.0	CVEProject cvelistV5 (CNA) (VulDB)	`CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R`
10.0High	2.0	CVEProject cvelistV5 (CNA) (VulDB)	`AV:N/AC:L/Au:N/C:C/I:C/A:C/E:POC/RL:ND/RC:UR`

Affected products

Vendor	Product	Versions	Source
Totolink	A3002MU	Hh-B20211125.1046	CVEProject cvelistV5 (CNA)

References and advisories

https://vuldb.com/vuln/407550 vdb-entrytechnical-description
https://vuldb.com/vuln/407550/cti signaturepermissions-required
https://vuldb.com/cve/CVE-2026-93740 third-party-advisory
https://vuldb.com/submit/914019 third-party-advisory
https://www.totolink.net/ product
https://github.com/SunnyYANGyaya/cuicuishark-sheep-fishIOT/blob/main/ToTolink/A3002MU/bof-formWlEncrypt.md exploit

Kolun on Telegram @kolunsec Exploited CVEs, key news and a daily digest Alerts for this product's next CVEsFollow the product to get new vulnerabilities on Telegram.

Details

Published: 2026-09-19
Last updated: 2026-09-21
State: Published
Assigner (CNA): VulDB

Exploit prediction (EPSS)

0.88%

Probability of exploitation in 30 days

59.3%

Percentile (among all CVEs)

SSVC assessment (CISA)

Automatable: Yes
Exploitation: Proof of concept
Technical impact: Total

Weaknesses (CWE)

CWE-120
Buffer Overflow
CWE-119
Memory Corruption