7.4

CVE-2019-19135: opcfoundation netstandard.opc.ua Use of Insufficiently Random Values

CVSS: 7.4v3.1HighModified
AliasesGHSA-pq4w-qm9g-qx68
Published 16-03-2020Last modified 05-08-2024
Open JSON

Vulnerability summary

CVE-2019-19135 is a high (CVSS 7.4) Use of Insufficiently Random Values vulnerability in opcfoundation netstandard.opc.ua. EPSS estimates a 1.04% chance of exploitation in the next 30 days, higher than 63.4% of scored vulnerabilities.

Overall risk
30/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.4/10
010
High · v3.1 (NVD)
EPSS score
1.04%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 16-03-2020
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

Description

In OPC Foundation OPC UA .NET Standard codebase 1.4.357.28, servers do not create sufficiently random numbers in OPCFoundation.NetStandard.Opc.Ua before 1.4.359.31, which allows man in the middle attackers to reuse encrypted user credentials sent over the network.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

1.04%

Chance of exploitation in the next 30 days

Percentile

63%

Versus all other CVEs

30-day change

0.00 pp

From 1.04% on 18-09-2026

18-09-202618-10-2026
EPSS score
1.04%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Opcfoundation2 products
Org.eclipse.milo1 product
  • sdk-client< 0.3.6

2 vendors · 3 products

References

6 links