CVE-2021-35327

9.8 criticalEPSS 1.4%

Critical (9.8) in totolink a720r firmware. EPSS 1.4% chance of exploitation in the next 30 days.

A vulnerability in TOTOLINK A720R A720R_Firmware v4.1.5cu.470_B20200911 allows attackers to start the Telnet service, then login with the default credentials via a crafted POST request.

Severity

CVSS 3.1

9.8 critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 1.4% chance of exploitation in the next 30 days; higher than 72% of CVEs (scores of 2026-10-31)
CWE: CWE-862
Published: 2021-08-05
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

totolink:a720r_firmware

References

https://github.com/hurricane618/my_cves/blob/master/router/totolink/A720R_default_telnet_info.md
https://github.com/hurricane618/my_cves/blob/master/router/totolink/A720R_default_telnet_info.md

Check your stack JSON