How severe is CVE-2022-24298?

CVE-2022-24298 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-2022-24298 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-24298?

CVE-2022-24298 affects Freeopcua. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-24298?

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-2022-24298 published?

CVE-2022-24298 was published on 2022-08-23 and last updated on 2026-06-17.

CVE-2022-24298

CVE-2022-24298 is a high-severity vulnerability in Freeopcua 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)
EPSS exploit prediction: 1% (51st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-770
Affected product: Freeopcua
Published: 2022-08-23
Last modified: 2026-06-17

Description

All versions of package freeopcua/freeopcua are vulnerable to Denial of Service (DoS) when bypassing the limitations for excessive memory consumption by sending multiple CloseSession requests with the deleteSubscription parameter equal to False.

Frequently asked questions

What is CVE-2022-24298?: All versions of package freeopcua/freeopcua are vulnerable to Denial of Service (DoS) when bypassing the limitations for excessive memory consumption by sending multiple CloseSession requests with the deleteSubscription parameter equal to False.
How severe is CVE-2022-24298?: CVE-2022-24298 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-2022-24298 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-24298?: CVE-2022-24298 affects Freeopcua. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-24298?: 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-2022-24298 published?: CVE-2022-24298 was published on 2022-08-23 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:freeopcua:freeopcua:-:*:*:*:*:*:*:*

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