CVE-2021-22741

Name: CVE-2021-22741
Creator: NVD / NIST
Published: 2021-05-26T20:15:09.253+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.7/10EPSS 0.17%

Last modified Jun 17, 2026

CVE-2021-22741 is a medium-severity vulnerability rated 6.7/10 on the CVSS scale. Use of Password Hash with Insufficient Computational Effort vulnerability exists in ClearSCADA (all versions), EcoStruxure Geo SCADA Expert 2019 (all versions), and EcoStruxure Geo SCADA Expert 2020 (V83.7742.1 and prior), which could cause the revealing of account credentials when server database files are available. Exposure of these files to an attacker can make the system vulnerable to password decryption attacks. EPSS estimates a 0.17% chance of exploitation in the next 30 days.

Description

Use of Password Hash with Insufficient Computational Effort vulnerability exists in ClearSCADA (all versions), EcoStruxure Geo SCADA Expert 2019 (all versions), and EcoStruxure Geo SCADA Expert 2020 (V83.7742.1 and prior), which could cause the revealing of account credentials when server database files are available. Exposure of these files to an attacker can make the system vulnerable to password decryption attacks. Note that “.sde” configuration export files do not contain user account password hashes.

Metrics

CVSS 3.1

6.7/10

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

EPSS Probability

0.17%

6.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-916

Affected Software

Vendor	Product	Versions
Schneider-Electric	Clearscada	All versions
Schneider-Electric	Ecostruxure Geo Scada Expert 2019	All versions
Schneider-Electric	Ecostruxure Geo Scada Expert 2020	<= 83.7742.1

References

https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-130-07Patch, Vendor Advisory
https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-130-07Patch, Vendor Advisory

Timeline

Published: May 26, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-22741?

How severe is CVE-2021-22741?

CVE-2021-22741 has a CVSS score of 6.7/10 (MEDIUM severity). The EPSS model estimates a 0.17% probability of exploitation in the next 30 days.

How do I fix CVE-2021-22741?

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-2021-22741?

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

Scan your code now

Source: NVD / NIST