Improper signature verification in Opto 22 SoftPAC Project
Priority LOW 26CWE-347Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · High · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-347.
Summary
Opto 22 SoftPAC Project Version 9.6 and prior. SoftPAC’s firmware files’ signatures are not verified upon firmware update. This allows an attacker to replace legitimate firmware files with malicious files.
Why it matters now
EPSS 0.00465 40th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | Opto 22 SoftPAC Project | SoftPAC Project Version 9.6 and prior | — | No fix listed | CNA |
- Opto 22 SoftPAC Project Vendor— Affected SoftPAC Project Version 9.6 and prior Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2020-12046
- 2026-10-03 Alias added: GHSA-vxj9-gvcj-83p2
References
More OPTO 22 Softpac Project vulnerabilities
- TI-2020-08532 Improper authorization in Opto 22 SoftPAC Project CVSS 3.1CRITICAL 9.8
- TI-2020-08528 Uncontrolled search path in Opto 22 SoftPAC Project CVSS 3.1HIGH 8.8
- TI-2020-08524 Improper access control in Opto 22 SoftPAC Project CVSS 3.1CRITICAL 9.1
- TI-2020-09701 Improper signature verification in Opto 22 SoftPAC Project CVSS 3.1MEDIUM 6.5
Sources
- CVE-2020-12046 · CVE Program
- CVE-2020-12046 · NVD
- FIRST EPSS
- GHSA-vxj9-gvcj-83p2 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences