CVE-2021-40655D-Link DIR-605 Router Information Disclosure Vulnerability

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

7.5 HIGHEPSS 87.03%⚡ Known Exploited (CISA KEV)NVD: Analyzed

Last updated: 2026-06-17 04:07 UTC

OverviewCVSS details

7.5HIGHCVSS 3.1

Score source: NVD
NVD status: Analyzed
Published: Sep 24, 2021
Assigner: mitre

Affected

dir-605l firmware (dlink)

Versions: 2.01mt

Exploitation

Public exploit: Yes · 1 reference
CISA KEV: Listed · May 16, 2024
KEV due date: Jun 6, 2024
Ransomware use: Unknown
SSVC: Exploitation active · Automatable no · Impact partial

EPSS · FIRST, scored Nov 7

87.03%chance of exploitation in 30 days

Higher than 99.75% of CVEs

CVSS 3.1 · NVD

7.5High

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 impact: High
Integrity impact: None
Availability impact: None

CVSS 2.0 · NVD

5.0Medium

AV:N/AC:L/Au:N/C:P/I:N/A:N

Attack vector: Network
Attack complexity: Low
Authentication: None
Confidentiality impact: Partial
Integrity impact: None
Availability impact: None

NVD status: Analyzed

Overview Affected Products References

NVD CVE.org

Overview

Severity

Score	Severity	Version	Vector String
7.5	HIGH	3.1NVD	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
5.0	MEDIUM	2.0NVD	AV:N/AC:L/Au:N/C:P/I:N/A:N

CISA required action

⚡ Known exploited · remediation due Jun 6, 2024

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.

Details

CVE ID: CVE-2021-40655
Status: Analyzed
Assigner (CNA): mitre
Published: Sep 24, 2021
Last modified: 2026-06-17 04:07 UTC
Weaknesses: CWE-863

Sources

Refreshed hourly from the sources above. Last fetched 2026-11-08 13:27 UTC.