CVE-2021-23857

Name: CVE-2021-23857
Creator: NVD / NIST
Published: 2021-10-04T18:15:07.797+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 1.19%

Last modified Jun 17, 2026

CVE-2021-23857 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Login with hash: The login routine allows the client to log in to the system not by using the password, but by using the hash of the password. Combined with CVE-2021-23858, this allows an attacker to subsequently login to the system.. EPSS estimates a 1.19% chance of exploitation in the next 30 days.

Description

Login with hash: The login routine allows the client to log in to the system not by using the password, but by using the hash of the password. Combined with CVE-2021-23858, this allows an attacker to subsequently login to the system.

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

1.19%

64.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Bosch	Rexroth Indramotion Mlc L20 Firmware	<= 12
Bosch	Rexroth Indramotion Mlc L40 Firmware	<= 12
Bosch	Rexroth Indramotion Mlc L25 Firmware	<= 12
Bosch	Rexroth Indramotion Mlc L45 Firmware	<= 12
Bosch	Rexroth Indramotion Mlc L65 Firmware	<= 12
Bosch	Rexroth Indramotion Mlc L75 Firmware	<= 12
Bosch	Rexroth Indramotion Mlc L85 Firmware	<= 12
Bosch	Rexroth Indramotion Mlc Xm22 Firmware	<= 12
Bosch	Rexroth Indramotion Mlc Xm21 Firmware	<= 12
Bosch	Rexroth Indramotion Mlc Xm41 Firmware	<= 12
Bosch	Rexroth Indramotion Mlc Xm42 Firmware	<= 12
Bosch	Rexroth Indramotion Xlc Firmware	<= 12

References

https://psirt.bosch.com/security-advisories/bosch-sa-741752.htmlVendor Advisory
https://psirt.bosch.com/security-advisories/bosch-sa-741752.htmlVendor Advisory

Timeline

Published: Oct 4, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-23857?

How severe is CVE-2021-23857?

CVE-2021-23857 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.19% probability of exploitation in the next 30 days.

How do I fix CVE-2021-23857?

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-2021-23857?

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

Scan your code now

Source: NVD / NIST