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CVE-2022-3166

19
FAUCET Score

CVE-2022-3166 is a denial-of-service vulnerability affecting the webservers of Rockwell Automation MicroLogix 1100 and 1400 controllers. An unauthenticated attacker with network access can trigger this by sending malformed TCP packets, causing the web server application to crash. Rated 7.5 HIGH on CVSS, this vulnerability requires no user interaction and has a high impact on availability. There is no public exploit code available, it is not listed in CISA's KEV catalog, and community discussion is minimal.

Impacted Technologies

VendorProductVersion(s)CPE
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:o:rockwellautomation:micrologix_1100_firmware:-:*:*:*:*:*:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:o:rockwellautomation:micrologix_1400_firmware:-:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.68%
Probability of exploitation in next 30 days
EPSS Percentile
48.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0068 is in the 25th percentile among its peer group of 51,553 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

rockwellautomation.custhelp.com / app/answers/answer_view/a_id/1137678
Permissions RequiredVendor Advisory