Authentication bypass by capture-replay vulnerability exists in Machine automation controller NX7 series all models V1.28 and earlier, Machine automation controller NX1 series all models V1.48 and earlier, and Machine automation controller NJ series all models V 1.48 and earlier, which may allow an adjacent attacker who can analyze the communication between the controller and the specific software used by OMRON internally to cause a denial-of-service (DoS) condition or execute a malicious program.
CVE-2022-33971
Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2022-07-05. NVD baseline CVSS 7.5; sources differ by 0.0.
- High severity, but no confirmed exploitation yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 7.5
- EG Score
- 7.5(medium)
- EPSS
- 63.0%
- KEV
- Not listed
Published
July 4, 2022
Last Modified
June 2, 2026
References (4)
- vultures@jpcerthttps://jvn.jp/en/vu/JVNVU97050784/index.html
- vultures@jpcerthttps://www.ia.omron.com/product/vulnerability/OMSR-2022-002_en.pdf
- af854a3a-2127-422b-91ae-364da2661108https://jvn.jp/en/vu/JVNVU97050784/index.html
- af854a3a-2127-422b-91ae-364da2661108https://www.ia.omron.com/product/vulnerability/OMSR-2022-002_en.pdf
Vendor Advisories for CVE-2022-33971(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Weakness Classification(2)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 8× in last 7d / 42× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-11 08:25 UTCEPSS rescore
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- 2026-05-25 19:29 UTCEG score recompute
- 2026-05-25 19:29 UTCGHSA enrichment
- 2026-05-24 16:51 UTCEPSS rescore
Frequently asked(5)
What is CVE-2022-33971?
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Dependency Blast Radius
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