CVE-2024-42512: opcfoundation ua_.net_standard_stack Observable Timing Discrepancy
CVSS: 8.6v3.1HighModified
AliasesGHSA-h958-fxgg-g7w3
Published 10-02-2025Last modified 15-10-2026
Vulnerability summary
CVE-2024-42512 is a high (CVSS 8.6) Observable Timing Discrepancy vulnerability in opcfoundation ua_.net_standard_stack. EPSS estimates a 0.60% chance of exploitation in the next 30 days, higher than 47.5% of scored vulnerabilities.
CVSS score
8.6/10
010
High · v3.1 (CVE.org)EPSS score
0.60%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 10-02-2025PublishedVulnerability first disclosed.
- 15-10-2026Last modifiedVulnerability information updated.
Description
Vulnerability in the OPC UA .NET Standard Stack before 1.5.374.158 allows an unauthorized attacker to bypass application authentication when the deprecated Basic128Rsa15 security policy is enabled.
CVSS metrics
3 scores · 3 sources · 1 versionHigh 8.6Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:LSources3 sources · 5.9–8.6
- OSV · NugetEcosystem advisory · calculated5.9MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:NDiffers
- NVDNIST8.6HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L
EPSS trend
Probability
0.60%
Chance of exploitation in the next 30 days
Percentile
48%
Versus all other CVEs
30-day change
0.00 pp
From 0.60% on 18-09-2026
18-09-202618-10-2026
EPSS score0.60%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
NuGet1 product
- OPCFoundation.NetStandard.Opc.Ua.Core< 1.5.374.158
Opcfoundation1 product
- ua_.net_standard_stack< 1.5.374.158
2 vendors · 2 products
