CISA-confirmed known exploited vulnerability

CVE-2021-40655

D-Link DIR-605 Router Information Disclosure Vulnerability

D-Link · DIR-605 Router

Vulnerability details

D-Link DIR-605 routers contain an information disclosure vulnerability that allows attackers to obtain a username and password by forging a post request to the /getcfg.php page.

Added to CISA KEV: 2024-05-16

Ransomware campaign use: Unknown

CISA due date: 2024-06-06

Defensive guidance from CISA

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.

This is the source's required-action field, not an independently validated patch procedure. Refer to the vendor for exact affected versions and fixes.

Source catalog date: 2026-11-06T19:44:45.1797Z · Last retrieved: 2026-11-06 21:02:26 UTC

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