CVE-2020-12046 json
Opto 22 SoftPAC Project Version 9.6 and prior.
published 2020-05-14 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-4362
- cvss
- 5.7
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 40%
- public exploits
- 0
- none known
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.
Vendor advisories
What the vendors themselves say about their products: affected, fixed or not affected, and what to do.
cisa ICSA-20-135-01 updated cvss 5.7
Opto 22 SoftPAC Project
-
Opto 22 SoftPAC Project <= 9.6affected: mitigation “Opto 22 released PAC Project 10.3 it is available for download” opto22.com
From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf
Exploit prediction
0.46% chance of exploitation in the next 30 days, higher than 40% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 5.7 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:N |
| NVD | 2.0 | 3.5 | AV:N/AC:M/Au:S/C:N/I:P/A:N |
Affected products
- n/a Opto 22 SoftPAC Project
Classification
- Weakness
-
- CWE-347 Improper Verification of Cryptographic Signature
References
-
us-cert.gov
/ics/advisories/icsa-20-135-01
third-party-advisory, us-government-resource
Sources
- CVE List CVE-2020-12046
- NVD CVE-2020-12046
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.