CVEvulnerability
CVE-2020-9277
9.8 CRITICAL
Official page ↗
- Status
- Modified
- Published
- 2020-04-20
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 7.5 HIGH — AV:N/AC:L/Au:N/C:P/I:P/A:P
- Weaknesses
- CWE-287
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.
Affected configurations
• dlink dsl-2640b firmware eu 4.01b
Related
Weakness · CWE (1)
- CWE-287 Improper Authentication weakness
References
- https://raelize.com/advisories/CVE-2020-9277_D-Link-DSL-2640B_CGI-Authentication-bypass_v1.0.txt Third Party Advisory
- https://raelize.com/posts/d-link-dsl-2640b-security-advisories/ Exploit, Third Party Advisory
- https://www.dlink.com/en/security-bulletin Vendor Advisory
- https://raelize.com/advisories/CVE-2020-9277_D-Link-DSL-2640B_CGI-Authentication-bypass_v1.0.txt Third Party Advisory
- https://raelize.com/posts/d-link-dsl-2640b-security-advisories/ Exploit, Third Party Advisory
- https://www.dlink.com/en/security-bulletin Vendor Advisory