What’s Vulnerable › Vulnerabilities

CVE-2021-32926

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.0% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-06-03 · updated 2026-06-17
• Weakness: CWE-300

Description

When an authenticated password change request takes place, this vulnerability could allow the attacker to intercept the message that includes the legitimate, new password hash and replace it with an illegitimate hash. The user would no longer be able to authenticate to the controller (Micro800: All versions, MicroLogix 1400: Version 21 and later) causing a denial-of-service condition

Affected products

• Rockwellautomation Micro800 Firmware: all versions
• Rockwell Automation MicroLogix 1400: from 21.0

References

• https://us-cert.cisa.gov/ics/advisories/icsa-21-145-02
• https://us-cert.cisa.gov/ics/advisories/icsa-21-145-02

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