How severe is CVE-2024-21381?

CVE-2024-21381 has a CVSS 3.x base score of 6.8, rated medium severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2024-21381 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (34th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-21381?

CVE-2024-21381 affects Microsoft Azure Active Directory. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-21381?

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

Does CVE-2024-21381 have an EU (EUVD) identifier?

Yes. CVE-2024-21381 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-19093.

When was CVE-2024-21381 published?

CVE-2024-21381 was published on 2024-02-13 and last updated on 2026-06-17.

CVE-2024-21381

CVE-2024-21381 is a medium-severity vulnerability in Microsoft Azure Active Directory with a CVSS 3.x base score of 6.8. 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-352.

Key facts

Severity: Medium (CVSS 3.x base score 6.8)
EPSS exploit prediction: 0% (34th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-19093
Weakness: CWE-352
Affected product: Microsoft Azure Active Directory
Published: 2024-02-13
Last modified: 2026-06-17

Description

Microsoft Azure Active Directory B2C Spoofing Vulnerability

Frequently asked questions

What is CVE-2024-21381?: Microsoft Azure Active Directory B2C Spoofing Vulnerability
How severe is CVE-2024-21381?: CVE-2024-21381 has a CVSS 3.x base score of 6.8, rated medium severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2024-21381 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (34th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-21381?: CVE-2024-21381 affects Microsoft Azure Active Directory. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-21381?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2024-21381 have an EU (EUVD) identifier?: Yes. CVE-2024-21381 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-19093.
When was CVE-2024-21381 published?: CVE-2024-21381 was published on 2024-02-13 and last updated on 2026-06-17.

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-21381

Affected products (1)

cpe:2.3:a:microsoft:azure_active_directory:-:*:*:*:*:*:*:*

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