How severe is CVE-2026-32216?

CVE-2026-32216 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2026-32216 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-32216?

CVE-2026-32216 primarily affects Microsoft Windows 11 26h1. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2026-32216?

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

Does CVE-2026-32216 have an EU (EUVD) identifier?

Yes. CVE-2026-32216 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-22599.

When was CVE-2026-32216 published?

CVE-2026-32216 was published on 2026-04-14 and last updated on 2026-06-17.

CVE-2026-32216

CVE-2026-32216 is a medium-severity vulnerability in Microsoft Windows 11 26h1 with a CVSS 3.x base score of 5.5. 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-476.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
EPSS exploit prediction: 0% (29th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-22599
Weakness: CWE-476
Affected product: Microsoft Windows 11 26h1
Published: 2026-04-14
Last modified: 2026-06-17

Description

Null pointer dereference in Windows Redirected Drive Buffering allows an authorized attacker to deny service locally.

Frequently asked questions

What is CVE-2026-32216?: Null pointer dereference in Windows Redirected Drive Buffering allows an authorized attacker to deny service locally.
How severe is CVE-2026-32216?: CVE-2026-32216 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2026-32216 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-32216?: CVE-2026-32216 primarily affects Microsoft Windows 11 26h1. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2026-32216?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-32216 have an EU (EUVD) identifier?: Yes. CVE-2026-32216 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-22599.
When was CVE-2026-32216 published?: CVE-2026-32216 was published on 2026-04-14 and last updated on 2026-06-17.

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-32216

Affected products (2)

cpe:2.3:o:microsoft:windows_11_26h1:*:*:*:*:*:*:arm64:*
cpe:2.3:o:microsoft:windows_11_26h1:*:*:*:*:*:*:x64:*

More vulnerabilities in Microsoft Windows 11 26h1

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