Microsoft Authenticator Elevation of Privilege Vulnerability
Priority LOW 34CWE-287Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Privilege escalation
- Confidentiality · integrity · availability
- High · High · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from Microsoft.
Summary
Microsoft Authenticator Elevation of Privilege Vulnerability
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01266 69th percentileScored 2026-11-07
Fix Fixed Microsoft Authenticator (Microsoft): 6.2401.0617
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA Microsoft Authenticator (Microsoft) Fixed in 6.2401.0617
Vendor assessments
Microsoft
Microsoft's page for this CVE →
- Impact
- Elevation of Privilege
- Exploited
- No
- Publicly disclosed
- No
- Exploitability
- Exploitation Less Likely
| Product | Status | Plan or fix |
|---|---|---|
| Microsoft Authenticator | Fixed | 6.2401.0617 · Security Update |
Timeline
- 2026-10-02 Threatist record created from CVE-2024-21390
- 2026-10-03 Alias added: GHSA-7wpm-78c8-xxqh
References
More Microsoft Authenticator vulnerabilities
- TI-2026-30155 Microsoft Authenticator Information Disclosure Vulnerability CVSS 3.1CRITICAL 9.6
- TI-2026-55363 Microsoft Authenticator Elevation of Privilege Vulnerability CVSS 3.1HIGH 8.6
- TI-2026-21117 Microsoft Authenticator Information Disclosure Vulnerability CVSS 3.1MEDIUM 5.5
Sources
- CVE-2024-21390 · CVE Program
- CVE-2024-21390 · NVD
- FIRST EPSS
- GHSA-7wpm-78c8-xxqh · GitHub Advisory Database · CC BY 4.0
- CVE-2024-21390 · Microsoft Security Update Guide
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences