High severity7.5NVD Advisory· Published Apr 4, 2022· Updated Jun 17, 2026
CVE-2021-32978
CVE-2021-32978
Description
The programming protocol allows for a previously entered password and lock state to be read by an attacker. If the previously entered password was successful, the attacker can then use the password to unlock Automation Direct CLICK PLC CPU Modules: C0-1x CPUs with firmware prior to v3.00.
Affected products
22- cpe:2.3:o:automationdirect:c0-10are-d_firmware:*:*:*:*:*:*:*:*Range: <3.00
- cpe:2.3:o:automationdirect:c0-10dd1e-d_firmware:*:*:*:*:*:*:*:*Range: <3.00
- cpe:2.3:o:automationdirect:c0-10dd2e-d_firmware:*:*:*:*:*:*:*:*Range: <3.00
- cpe:2.3:o:automationdirect:c0-10dre-d_firmware:*:*:*:*:*:*:*:*Range: <3.00
- cpe:2.3:o:automationdirect:c0-11are-d_firmware:*:*:*:*:*:*:*:*Range: <3.00
- cpe:2.3:o:automationdirect:c0-11dd1e-d_firmware:*:*:*:*:*:*:*:*Range: <3.00
- cpe:2.3:o:automationdirect:c0-11dd2e-d_firmware:*:*:*:*:*:*:*:*Range: <3.00
- cpe:2.3:o:automationdirect:c0-11dre-d_firmware:*:*:*:*:*:*:*:*Range: <3.00
- cpe:2.3:o:automationdirect:c0-12are-1-d_firmware:*:*:*:*:*:*:*:*Range: <3.00
- cpe:2.3:o:automationdirect:c0-12are-2-d_firmware:*:*:*:*:*:*:*:*Range: <3.00
- cpe:2.3:o:automationdirect:c0-12are-d_firmware:*:*:*:*:*:*:*:*Range: <3.00
- cpe:2.3:o:automationdirect:c0-12dd1e-1-d_firmware:*:*:*:*:*:*:*:*Range: <3.00
- cpe:2.3:o:automationdirect:c0-12dd1e-2-d_firmware:*:*:*:*:*:*:*:*Range: <3.00
- cpe:2.3:o:automationdirect:c0-12dd1e-d_firmware:*:*:*:*:*:*:*:*Range: <3.00
- cpe:2.3:o:automationdirect:c0-12dd2e-1-d_firmware:*:*:*:*:*:*:*:*Range: <3.00
- cpe:2.3:o:automationdirect:c0-12dd2e-2-d_firmware:*:*:*:*:*:*:*:*Range: <3.00
- cpe:2.3:o:automationdirect:c0-12dd2e-d_firmware:*:*:*:*:*:*:*:*Range: <3.00
- cpe:2.3:o:automationdirect:c0-12dre-1-d_firmware:*:*:*:*:*:*:*:*Range: <3.00
- cpe:2.3:o:automationdirect:c0-12dre-2-d_firmware:*:*:*:*:*:*:*:*Range: <3.00
- cpe:2.3:o:automationdirect:c0-12dre-d_firmware:*:*:*:*:*:*:*:*Range: <3.00
<v3.00+ 1 more
- (no CPE)range: <v3.00
- (no CPE)range: unspecified
Patches
Vulnerability mechanics
References
1- www.cisa.gov/uscert/ics/advisories/icsa-21-166-02nvdThird Party AdvisoryUS Government Resource
News mentions
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