How severe is CVE-2026-45476?

CVE-2026-45476 has a CVSS 3.x base score of 8.2, rated high severity. It is exploitable over local access with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-45476 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-45476?

CVE-2026-45476 affects Microsoft Azure Network Adapter. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-45476?

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.

Does CVE-2026-45476 have an EU (EUVD) identifier?

Yes. CVE-2026-45476 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-35546.

When was CVE-2026-45476 published?

CVE-2026-45476 was published on 2026-06-09 and last updated on 2026-06-23.

CVE-2026-45476

CVE-2026-45476 is a high-severity vulnerability in Microsoft Azure Network Adapter with a CVSS 3.x base score of 8.2. 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-416.

Key facts

Severity: High (CVSS 3.x base score 8.2)
EPSS exploit prediction: 0% (24th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-35546
Weakness: CWE-416
Affected product: Microsoft Azure Network Adapter
Published: 2026-06-09
Last modified: 2026-06-23

Description

Use after free in Linux MANA Driver allows an authorized attacker to elevate privileges locally.

Frequently asked questions

What is CVE-2026-45476?: Use after free in Linux MANA Driver allows an authorized attacker to elevate privileges locally.
How severe is CVE-2026-45476?: CVE-2026-45476 has a CVSS 3.x base score of 8.2, rated high severity. It is exploitable over local access with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-45476 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-45476?: CVE-2026-45476 affects Microsoft Azure Network Adapter. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-45476?: 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.
Does CVE-2026-45476 have an EU (EUVD) identifier?: Yes. CVE-2026-45476 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-35546.
When was CVE-2026-45476 published?: CVE-2026-45476 was published on 2026-06-09 and last updated on 2026-06-23.

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45476

Affected products (1)

cpe:2.3:a:microsoft:azure_network_adapter:-:*:*:*:*:linux_kernel:*:*

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