How severe is CVE-2022-29863?

CVE-2022-29863 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2022-29863 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-29863?

CVE-2022-29863 affects Opcfoundation Ua .net Standard Stack. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-29863?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2022-29863 published?

CVE-2022-29863 was published on 2022-06-16 and last updated on 2026-06-17.

CVE-2022-29863

CVE-2022-29863 is a high-severity vulnerability in Opcfoundation Ua .net Standard Stack with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-770.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 1% (68th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-770
Affected product: Opcfoundation Ua .net Standard Stack
Published: 2022-06-16
Last modified: 2026-06-17

Description

OPC UA .NET Standard Stack 1.04.368 allows remote attacker to cause a crash via a crafted message that triggers excessive memory allocation.

Frequently asked questions

What is CVE-2022-29863?: OPC UA .NET Standard Stack 1.04.368 allows remote attacker to cause a crash via a crafted message that triggers excessive memory allocation.
How severe is CVE-2022-29863?: CVE-2022-29863 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2022-29863 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-29863?: CVE-2022-29863 affects Opcfoundation Ua .net Standard Stack. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-29863?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2022-29863 published?: CVE-2022-29863 was published on 2022-06-16 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:opcfoundation:ua_.net_standard_stack:*:*:*:*:*:*:*:*

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