CVE-2021-21507

Name: CVE-2021-21507
Creator: NVD / NIST
Published: 2021-04-30T21:15:08.597+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 0.54%

Last modified Jun 17, 2026

CVE-2021-21507 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Dell EMC Networking X-Series firmware versions prior to 3.0.1.8 and Dell EMC PowerEdge VRTX Switch Module firmware versions prior to 2.0.0.82 contain a Weak Password Encryption Vulnerability. A remote unauthenticated attacker could potentially exploit this vulnerability, leading to the disclosure of certain user credentials. EPSS estimates a 0.54% chance of exploitation in the next 30 days.

Description

Dell EMC Networking X-Series firmware versions prior to 3.0.1.8 and Dell EMC PowerEdge VRTX Switch Module firmware versions prior to 2.0.0.82 contain a Weak Password Encryption Vulnerability. A remote unauthenticated attacker could potentially exploit this vulnerability, leading to the disclosure of certain user credentials. The attacker may be able to use the exposed credentials to access the vulnerable system with privileges of the compromised account.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

0.54%

41.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Dell	X1008p Firmware	< 3.0.1.8
Dell	X1018p Firmware	< 3.0.1.8
Dell	X1026p Firmware	< 3.0.1.8
Dell	X1052p Firmware	< 3.0.1.8
Dell	X4012 Firmware	< 3.0.1.8
Dell	R1-2401 Firmware	< 2.0.0.82
Dell	R1-2210 Firmware	< 2.0.0.82
Dell	X1008 Firmware	< 3.0.1.8
Dell	X1018 Firmware	< 3.0.1.8
Dell	X1026 Firmware	< 3.0.1.8
Dell	X1052 Firmware	< 3.0.1.8

References

https://www.dell.com/support/kbdoc/000185252Patch, Vendor Advisory
https://www.dell.com/support/kbdoc/000185252Patch, Vendor Advisory

Timeline

Published: Apr 30, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-21507?

How severe is CVE-2021-21507?

CVE-2021-21507 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 0.54% probability of exploitation in the next 30 days.

How do I fix CVE-2021-21507?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-21507?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST