CVE-2020-12042 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-2020-4358
- cvss
- 6.5
- 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 43%
- public exploits
- 0
- none known
Summary
Opto 22 SoftPAC Project Version 9.6 and prior. Paths specified within the zip files used to update the SoftPAC firmware are not sanitized. As a result, an attacker with user privileges can gain arbitrary file write access with system access.
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 6.5
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
0.51% chance of exploitation in the next 30 days, higher than 43% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N |
| NVD | 2.0 | 4.0 | AV:N/AC:L/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-2020-12042
- NVD CVE-2020-12042
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.