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CVE-2022-29865

24
FAUCET Score

CVE-2022-29865 describes an authentication bypass vulnerability in the OPC UA .NET Standard Stack. A remote attacker can exploit this by submitting crafted fake credentials, bypassing the application's authentication mechanisms. This vulnerability carries a CVSS score of 7.5 (High), indicating it can be exploited over the network with low attack complexity and no user interaction, potentially leading to high integrity impact. While no public exploits, Metasploit modules, or Nuclei templates are currently available, and there is minimal community discussion or media coverage, organizations using the affected product should still prioritize patching.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.4.368.58CPE matchmatch criteria
cpe:2.3:a:opcfoundation:ua_.net_standard_stack:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.50%
Probability of exploitation in next 30 days
EPSS Percentile
71.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0150 is in the 53rd percentile among its peer group of 51,553 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

nugetpatch availablevia ghsa
Product: OPCFoundation.NetStandard.Opc.Ua.CoreFixed in: 1.4.368.58

Vendor Advisories (1)

nugetGHSA-fvxf-r9fw-49pchigh

Incorrect Implementation of Authentication Algorithm in OPCFoundation.NetStandard.Opc.Ua.Core

Jun 17, 2022

References

files.opcfoundation.org / SecurityBulletins/OPC%20Foundation%20Security%20Bulletin%20CVE-2022-29865.pdf
PatchVendor Advisory
opcfoundation.org / security
Vendor Advisory