How severe is CVE-2026-32226?

CVE-2026-32226 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2026-32226 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-32226?

CVE-2026-32226 primarily affects Microsoft .net Framework. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2026-32226?

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

Does CVE-2026-32226 have an EU (EUVD) identifier?

Yes. CVE-2026-32226 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-22614.

When was CVE-2026-32226 published?

CVE-2026-32226 was published on 2026-04-14 and last updated on 2026-06-17.

CVE-2026-32226

CVE-2026-32226 is a medium-severity vulnerability in Microsoft .net Framework with a CVSS 3.x base score of 5.9. 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-362.

Key facts

Severity: Medium (CVSS 3.x base score 5.9)
EPSS exploit prediction: 1% (42nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-22614
Weakness: CWE-362
Affected product: Microsoft .net Framework
Published: 2026-04-14
Last modified: 2026-06-17

Description

Concurrent execution using shared resource with improper synchronization ('race condition') in .NET Framework allows an unauthorized attacker to deny service over a network.

Frequently asked questions

What is CVE-2026-32226?: Concurrent execution using shared resource with improper synchronization ('race condition') in .NET Framework allows an unauthorized attacker to deny service over a network.
How severe is CVE-2026-32226?: CVE-2026-32226 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2026-32226 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-32226?: CVE-2026-32226 primarily affects Microsoft .net Framework. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2026-32226?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-32226 have an EU (EUVD) identifier?: Yes. CVE-2026-32226 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-22614.
When was CVE-2026-32226 published?: CVE-2026-32226 was published on 2026-04-14 and last updated on 2026-06-17.

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-32226

Affected products (4)

cpe:2.3:a:microsoft:.net_framework:3.5:-:*:*:*:*:*:*
cpe:2.3:a:microsoft:.net_framework:4.7.2:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:.net_framework:4.8:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:.net_framework:4.8.1:*:*:*:*:*:*:*

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