CVE-2021-32986 describes a critical authentication bypass vulnerability affecting Automation Direct CLICK PLC C0-1x CPU modules with firmware prior to v3.00. Once an authorized user unlocks the PLC, it remains unlocked indefinitely if the programming software disconnects improperly, allowing subsequent unauthorized programming connections. This vulnerability carries a CVSS score of 9.8 (Critical) due to its network-based attack vector, low attack complexity, and high impact on confidentiality, integrity, and availability. Despite its severity, there is currently no public exploit code available, it is not listed in CISA's KEV catalog, and there is minimal community discussion or media coverage surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 3.00CPE matchmatch criteria | cpe:2.3:o:automationdirect:c0-10dd1e-d_firmware:*:*:*:*:*:*:*:* | ||
< 3.00CPE matchmatch criteria | cpe:2.3:o:automationdirect:c0-10dd2e-d_firmware:*:*:*:*:*:*:*:* | ||
< 3.00CPE matchmatch criteria | cpe:2.3:o:automationdirect:c0-10dre-d_firmware:*:*:*:*:*:*:*:* | ||
< 3.00CPE matchmatch criteria | cpe:2.3:o:automationdirect:c0-10are-d_firmware:*:*:*:*:*:*:*:* | ||
< 3.00CPE matchmatch criteria | cpe:2.3:o:automationdirect:c0-11dd1e-d_firmware:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.