CVSS 3.1
9.8 criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HCVE-2020-9277
Critical (9.8) in dlink dsl-2640b firmware. EPSS 2.5% chance of exploitation in the next 30 days.
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.
Severity
- EPSS
- 2.5% chance of exploitation in the next 30 days; higher than 84% of CVEs (scores of 2026-10-31)
- CWE
- CWE-287
- Published
- Modified
- Record from
- the NVD, synced
Affected
- dlink:dsl-2640b_firmware
References
- https://raelize.com/advisories/CVE-2020-9277_D-Link-DSL-2640B_CGI-Authentication-bypass_v1.0.txt
- https://raelize.com/posts/d-link-dsl-2640b-security-advisories/
- https://www.dlink.com/en/security-bulletin
- https://raelize.com/advisories/CVE-2020-9277_D-Link-DSL-2640B_CGI-Authentication-bypass_v1.0.txt
- https://raelize.com/posts/d-link-dsl-2640b-security-advisories/