Is CVE-2021-40655 exploited in the wild?

Yes. CVE-2021-40655 is known to be exploited in the wild, first recorded on 16 May 2024. Treat it as urgent.

How severe is CVE-2021-40655?

Critical severity, with a CVSS score of 7.5, published 16 May 2024.

Which products and versions are affected?

D-Link DIR-605 B2 Firmware 2.01MT; D-Link DIR-605L B2 Firmware 2.01MT.

Is there a fix for CVE-2021-40655?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2021-40655 attacked?

It is attacked over the network, in a network appliance.

Am I affected by CVE-2021-40655?

Check whether you run D-Link DIR-605 Router. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

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

CVE-2021-40655 · Severity: critical · CVSS 7.5 · Exploited in the wild · Published 2024-05-16

D-Link DIR-605 routers contain an information disclosure vulnerability due to incorrect authorization. An attacker can obtain the device's username and password by sending a forged POST request to the /getcfg.php page.

Vendors: D-Link.

Quick answers

Is CVE-2021-40655 exploited in the wild?: Yes. CVE-2021-40655 is known to be exploited in the wild, first recorded on 16 May 2024. Treat it as urgent.
How severe is CVE-2021-40655?: Critical severity, with a CVSS score of 7.5, published 16 May 2024.
Which products and versions are affected?: D-Link DIR-605 B2 Firmware 2.01MT; D-Link DIR-605L B2 Firmware 2.01MT.
Is there a fix for CVE-2021-40655?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2021-40655 attacked?: It is attacked over the network, in a network appliance.
Am I affected by CVE-2021-40655?: Check whether you run D-Link DIR-605 Router. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Affected products

D-Link DIR-605 B2 Firmware 2.01MT
D-Link DIR-605L B2 Firmware 2.01MT

Timeline

2021-09-24: disclosed: NVD Published Date
2024-05-16: kev added: Added to CISA Known Exploited Vulnerabilities Catalog
2024-05-16: exploited: CISA confirmed exploitation in the wild

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