Detections
Analytics

CVE-2020-9277

critical

Description

An issue was discovered on D-Link DSL-2640B B2 EU_4.01B devices. Authentication can be bypassed when accessing cgi modules. This allows one to perform administrative tasks (e.g., modify the admin password) with no authentication.

References

https://www.dlink.com/en/security-bulletin

https://raelize.com/posts/d-link-dsl-2640b-security-advisories/

https://raelize.com/advisories/CVE-2020-9277_D-Link-DSL-2640B_CGI-Authentication-bypass_v1.0.txt

Details

Source: Mitre, NVD

Published: 2020-04-20

Updated: 2026-06-17

Risk Information

CVSS v2

Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Severity: High

CVSS v3

Base Score: 9.8

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

Severity: Critical

EPSS

EPSS: 0.01276