CVE-2022-2967: prosys opc ua modbus server Insufficiently Protected Credentials
CVSS: 7.5v3.1HighModified
Published 03-01-2023Last modified 16-01-2025
Vulnerability summary
CVE-2022-2967 is a high (CVSS 7.5) Insufficiently Protected Credentials vulnerability in prosys opc ua modbus server. EPSS estimates a 0.41% chance of exploitation in the next 30 days, higher than 34.4% of scored vulnerabilities.
CVSS score
7.5/10
010
High · v3.1 (NVD)EPSS score
0.41%
0%100%
Low · +0.01 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 03-01-2023PublishedVulnerability first disclosed.
- 16-01-2025Last modifiedVulnerability information updated.
Description
Prosys OPC UA Simulation Server version prior to v5.3.0-64 and UA Modbus Server versions 1.4.18-5 and prior do not sufficiently protect credentials, which could allow an attacker to obtain user credentials and gain access to system data.
CVSS metrics
2 scores · 2 sources · 1 versionHigh 7.5Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:NSources2 sources · 6.5–7.5
- CVE.orgCNA6.5MediumCVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:HDiffers
EPSS trend
Probability
0.41%
Chance of exploitation in the next 30 days
Percentile
34%
Versus all other CVEs
30-day change
+0.01 pp
From 0.40% on 19-09-2026
19-09-202619-10-2026
EPSS score0.41%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Prosys opc2 products
- ua modbus server≤ 1.4.18-5
- ua simulation server< 5.3.0-64
Prosysopc2 products
- ua_modbus_server< 1.4.20
- ua_simulation_server< 5.4.0
2 vendors · 4 products
References
2 links- www.prosysopc.com/blog/Vendor Advisory