CVE-2021-40655
D-Link DIR-605 Router Information Disclosure Vulnerability
- High 7.5
- Exploited: added to CISA KEV 16 May 2024
Description
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
Key facts
- Published
- 24 Sep 2021
- Last changed
- 21 Oct 2025
- Assigned by
- mitre
- KEV added
- 16 May 2024
- KEV fix due
- 6 Jun 2024
- EPSS
- 87.039% likely to be exploited in the next 30 days, higher than 99.753% of CVEs (scores for 15 Nov 2026)
- SSVC (CISA)
- Exploitation: active; Automatable: no; Technical impact: partial
Severity scores
Each score is shown as its source gave it. They are not averaged or merged.
- 7.5CVSS 3.1, Highfrom CISA (ADP container)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
What to do
- 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.CISA KEV required action
Historical context and remediation
This reference retains the original CVE publication date. A recent record update does not mean a new attack occurred.
No separately sourced impact summary is available on this page yet. Consult the description, version data and dated exploitation evidence.
Version statuses below come from the CNA. An “unaffected” version is not necessarily a currently supported release or proof of a patch date. EPSS is a dated risk estimate, not a count of historical attacks.
Affected products
| Vendor | Product | Versions |
|---|---|---|
| n/a | n/a |
|
Timeline
- 24 Sep 2021 Published
- 16 May 2024 CVE-2021-40655 added to CISA KEV
- 16 May 2024 Added to the CISA KEV catalogue