How severe is CVE-2023-31048?

CVE-2023-31048 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2023-31048 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-31048?

CVE-2023-31048 affects Opcfoundation Ua-.netstandard. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-31048?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2023-31048 published?

CVE-2023-31048 was published on 2023-12-12 and last updated on 2026-06-17.

CVE-2023-31048

CVE-2023-31048 is a medium-severity vulnerability in Opcfoundation Ua-.netstandard with a CVSS 3.x base score of 5.3. 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-209.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
EPSS exploit prediction: 1% (52nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-209
Affected product: Opcfoundation Ua-.netstandard
Published: 2023-12-12
Last modified: 2026-06-17

Description

The OPC UA .NET Standard Reference Server before 1.4.371.86. places sensitive information into an error message that may be seen remotely.

Frequently asked questions

What is CVE-2023-31048?: The OPC UA .NET Standard Reference Server before 1.4.371.86. places sensitive information into an error message that may be seen remotely.
How severe is CVE-2023-31048?: CVE-2023-31048 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2023-31048 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-31048?: CVE-2023-31048 affects Opcfoundation Ua-.netstandard. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-31048?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-31048 published?: CVE-2023-31048 was published on 2023-12-12 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:opcfoundation:ua-.netstandard:*:*:*:*:*:*:*:*

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