No exploitation reportedFix available

CVE-2022-1797

Q: Is CVE-2022-1797 actively exploited?

Active exploitation of CVE-2022-1797 has not been confirmed. Its EPSS score was 2.2% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2022-1797?

CVE-2022-1797 has a CVSS v3 base score of 8.6 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H.

No exploitation reported by the sources we read.

Published2022-06-02
Fixed in34.011
WeaknessCWE-400

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

A malformed Class 3 common industrial protocol message with a cached connection can cause a denial-of-service condition in Rockwell Automation Logix Controllers, resulting in a major nonrecoverable fault. If the target device becomes unavailable, a user would have to clear the fault and redownload the user project file to bring the device back online.

Timeline

dates in UTC

2022-06-0214:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2022-1797?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2022-1797?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Rockwellautomation compact guardlogix 5370 firmwareversion to verify

Branch	Affected	Fixed in	Source
34.11	< 34.011	34.011	NVD

Rockwellautomation compact guardlogix 5380 firmwareversion to verify

Branch	Affected	Fixed in	Source
33.11	< 33.011	33.011	NVD

Rockwellautomation compactlogix 5370 firmwareversion to verify

Branch	Affected	Fixed in	Source
34.11	< 34.011	34.011	NVD

6 more products in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Vendor advisories

ICSA-22-144-01 CISA9 known affected
Rockwell Automation Logix Controllers
Compact GuardLogix 5370 controllers: firmware Versions 33.013 and earlier · Compact GuardLogix 5380 controllers: firmware Versions 32.013 and earlier · CompactLogix 5370 controllers: firmware Versions 33.013 and earlier · +6 more

Full record on NVD

Fix

Update Rockwellautomation compact guardlogix 5370 firmware to 34.011
Mitigation from the vendor CISA ICSA-22-144-01 · 9 productsRockwell Automation recommends users update to the latest firmware version to mitigate this vulnerability. Users are directed towards the risk mitigation provided below and are encouraged (where possible) to combine these with the general security guidelines below to employ multiple strategies simu…
Mitigation from the vendor CISA ICSA-22-144-01 · 9 productsCompactLogix 5380, Compact GuardLogix 5380, CompactLogix 5480, ControlLogix 5580, GuardLogix 5580: Upgrade to v33.011 firmware
Mitigation from the vendor CISA ICSA-22-144-01 · 9 productsCompactLogix 5370, Compact GuardLogix 5370, ControlLogix 5570, GuardLogix 5570: Upgrade to v34.011 firmware
Mitigation from the vendor CISA ICSA-22-144-01 · 9 productsUse of Microsoft AppLocker or other similar allow list applications can help mitigate risk. Information on using AppLocker with products from Rockwell Automation is available in Knowledgebase article QA17329.
Mitigation from the vendor CISA ICSA-22-144-01 · 9 productsConfirm the least-privilege user principle is followed, and user/service account access to shared resources (such as a database) is only granted with a minimum number of rights as needed.
Mitigation from the vendor CISA ICSA-22-144-01 · 9 productsUse trusted software, software patches, antivirus/antimalware programs and interact only with trusted websites and attachments.

Advisories and patches

rockwellautomation.custhelp.comVendor Advisory

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

CISA-ADPSSVC decisionnone2025-04-16
OpenCVESSVC decisionnone—
CNACVSS 3.16.8read 2026-10-23
NVDCVSS 3.18.6read 2026-10-23
NVDCVSS 2.07.8read 2026-10-23
CNAweakness (CWE)CWE-400read 2026-10-23
FIRST EPSSEPSS score2.2 %2026-10-23

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Published: 2022-06-02
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2022-1797?

Is CVE-2022-1797 actively exploited?

Active exploitation of CVE-2022-1797 has not been confirmed. Its EPSS score was 2.2% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2022-1797?

CVE-2022-1797 has a CVSS v3 base score of 8.6 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H.

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