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CVE-2022-29864

25
FAUCET Score

CVE-2022-29864 is an Uncontrolled Resource Consumption vulnerability affecting the OPC UA .NET Standard Stack (version 1.04.368). A remote, unauthenticated attacker can exploit this flaw by sending a large volume of messages, leading to a denial-of-service condition and server crash. Rated with a CVSS score of 7.5 (HIGH), this vulnerability is easily exploitable over the network with no user interaction required, resulting in high availability impact. Currently, there is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

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:N/A:H

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

Exploit Intelligence

EPSS Score
1.81%
Probability of exploitation in next 30 days
EPSS Percentile
76.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0181 is in the 59th percentile among its peer group of 51,485 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-vhfw-v69p-crcwhigh

Uncontrolled Resource Consumption in OPCFoundation.NetStandard.Opc.Ua.Core

Jun 17, 2022

References

files.opcfoundation.org / SecurityBulletins/OPC%20Foundation%20Security%20Bulletin%20CVE-2022-29864.pdf
PatchVendor Advisory
opcfoundation.org / security
Vendor Advisory