Stack-based buffer overflow in OMRON Corporation CX-One
Priority MEDIUM 48CWE-121Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-121 and the CVSS impact.
Summary
Omron CX-One Versions 4.60 and prior are vulnerable to a stack-based buffer overflow while processing specific project files, which may allow an attacker to execute arbitrary code.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.09271 95th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| OMRON Corporation | CX-One | All – 4.60 | — | No fix listed | CNA |
- CX-One VendorOMRON Corporation Affected All – 4.60 Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:omron:cx-one:*:*:*:*:*:*:*:* | up to 4.60 | Vulnerable | OMRON Corporation |
- cpe:2.3:a:omron:cx-one:*:*:*:*:*:*:*:* Versions up to 4.60 Vulnerable ·OMRON Corporation
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2022-21137
- 2026-10-03 Alias added: GHSA-5g39-42r3-hp8f
References
More OMRON Corporation Cx-one vulnerabilities
- TI-2020-16587 Stack-based buffer overflow in OMRON Corporation CX-One CVSS 3.1HIGH 8.8
- TI-2021-08904 Stack-based buffer overflow in Omron CX-One CVSS 3.1HIGH 7.8
- TI-2020-16585 The Omron CX-One Version 4.60 and prior may allow an attacker to supply a pointer to… CVSS 3.1HIGH 8.8
- TI-2020-16583 Type confusion in OMRON Corporation CX-One CVSS 3.1HIGH 7.8
- TI-2018-13457 Stack-based buffer overflow in CX-One CVSS 3.1HIGH 7.8
- TI-2018-13488 Type confusion in OMRON Corporation CX-Protocol within CX-One CVSS 3.0HIGH 7.8
Sources
- CVE-2022-21137 · CVE Program
- CVE-2022-21137 · NVD
- FIRST EPSS
- GHSA-5g39-42r3-hp8f · GitHub Advisory Database · CC BY 4.0
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