CVE-2026-45480
CVE-2026-45480 is a critical-severity vulnerability in Microsoft Azure Active Directory with a CVSS 3.x base score of 10.0. 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-287.
Key facts
- Severity: Critical (CVSS 3.x base score 10.0)
- EPSS exploit prediction: 1% (43rd percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-38086
- Weakness: CWE-287
- Affected product: Microsoft Azure Active Directory
- Published:
- Last modified:
Description
Improper authentication in Azure Active Directory allows an unauthorized attacker to elevate privileges over a network.
Frequently asked questions
- What is CVE-2026-45480?
- Improper authentication in Azure Active Directory allows an unauthorized attacker to elevate privileges over a network.
- How severe is CVE-2026-45480?
- CVE-2026-45480 has a CVSS 3.x base score of 10.0, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2026-45480 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-45480?
- CVE-2026-45480 affects Microsoft Azure Active Directory. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-45480?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- Does CVE-2026-45480 have an EU (EUVD) identifier?
- Yes. CVE-2026-45480 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-38086.
- When was CVE-2026-45480 published?
- CVE-2026-45480 was published on 2026-06-19 and last updated on 2026-06-24.
References
Affected products (1)
- cpe:2.3:a:microsoft:azure_active_directory:-:*:*:*:*:*:*:*
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