CISA KEV · Known exploitedHigh

CVE-2021-40655

D-Link DIR-605 Router

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
7.5
EPSS
86.7%
99.7% percentile
CISA KEV
Listed
Published
2021.09.25
PRIORITY ASSESSMENT

Immediate review

CISA has listed this vulnerability in the Known Exploited Vulnerabilities catalog.

Known exploitationConfirmed by CISA KEV
Exploit probability86.7%
Technical severityCVSS 7.5

Vulnerability overview

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

Affected product and versions

Product
D-Link DIR-605 Router
Affected versions
2.01mt, b2
Fixed versions
No verified fixed-version field is available yet

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
CISA 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.

Due date: 2024.06.06
  1. 1
    Identify

    Confirm that D-Link DIR-605 Router and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CWE
CWE-863
KEV added
2024.05.16
Ransomware use
미확인
CVE-2021-40655 — D-Link DIR-605 Router | SECUFOCUS NOW