CVE DATABASE / CVE-2021-40655
CVE-2021-40655
D-Link DIR-605 Router Information Disclosure Vulnerability
Confirmed exploited in the wild. Added 2024-05-16.
Federal remediation due 2024-06-06.
Required action: This vulnerability affects legacy D-Link products. All associated hardware revisions have reached their end-of-life (EOL) or end-of-service (EOS) life cycle and should be retired and replaced per vendor instructions.
Summary
An informtion disclosure issue exists in D-LINK-DIR-605 B2 Firmware Version : 2.01MT. An attacker can obtain a user name and password by forging a post request to the / getcfg.php page
CVSS 3.1 breakdown
| Base score | 7.5 (HIGH) |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
| Attack vector | NETWORK |
| Attack complexity | LOW |
| Privileges required | NONE |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | HIGH |
| Integrity | NONE |
| Availability | NONE |
Weakness type (CWE)
Affected products
Use our free CVE Lookup tool for the latest NVD record, or browse the full CISA KEV catalog.
References
- https://github.com/Ilovewomen/D-LINK-DIR-605/
- https://www.dlink.com/en/security-bulletin/
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-40655
Data: NIST NVD + CISA KEV. NVD last modified 2025-11-10. Always verify against the vendor advisory before acting.