MEDIUM
CVE-2020-12046
CWE-347Published: May 14, 2020· Updated: Jun 17, 2026
5.7
CVSS v3.1
Official Description
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.
Technical Analysis
CVE-2020-12046 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
A successful exploit results in full integrity compromise (data manipulation), with a CVSS base score of 5.7.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.Low
User InteractionRequired
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityHigh
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:N
Affected Vendors & Products
opto221 product(s)
softpac project
Source: NVD CPE · 1 total CPE entries
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
Official Patches & Advisories
All References (2)
→
https://www.us-cert.gov/ics/advisories/icsa-20-135-01Third Party Advisory · US Government Resource
→
https://www.us-cert.gov/ics/advisories/icsa-20-135-01Third Party Advisory · US Government Resource
Quick Facts
CVE IDCVE-2020-12046
CVSS Score5.7 / 10
SeverityMEDIUM
WeaknessCWE-347
CISA KEVNo
Affected1 vendor(s)
PublishedMay 14, 2020
Related CVEs (CWE-347)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2020-12046 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.