CVE-2021-26429
Azure Sphere Elevation of Privilege Vulnerability
7.7 High
Azure Sphere Elevation of Privilege Vulnerability
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- High
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- Low
Exploit likelihood
0.60%Up 0.2 points since Aug 13, 2021
What each source reports
CVE List Score used
Azure Sphere Elevation of Privilege Vulnerability
Azure Sphere Elevation of Privilege Vulnerability
- Record
CVE-2021-26429- CVSS 3.1
- 7.7 High
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:L/E:P/RL:O/RC:C - Updated
- 2026-11-02
EUVDEUVD-2021-13234
Azure Sphere Elevation of Privilege Vulnerability
- Record
EUVD-2021-13234- CVSS 3.1
- 7.7 High
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:L/E:P/RL:O/RC:C - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-w6hx-48fv-27wr
Azure Sphere Elevation of Privilege Vulnerability
Azure Sphere Elevation of Privilege Vulnerability
- Record
GHSA-w6hx-48fv-27wr- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-269
- Updated
- 2026-11-02
NVD
Azure Sphere Elevation of Privilege Vulnerability
- Record
CVE-2021-26429- CVSS 3.1
- 7.7 High
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:L - CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 4.6 Medium
AV:L/AC:L/Au:N/C:P/I:P/A:P - Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-26429 is a high vulnerability (CVSS 7.7) in Microsoft Azure Sphere, published August 12, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.60%, the 49th percentile. No source names a fixed version.