CVE-2021-27074
Azure Sphere Unsigned Code Execution Vulnerability
Azure Sphere Unsigned Code Execution Vulnerability
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- High
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
Azure Sphere Unsigned Code Execution Vulnerability
Azure Sphere Unsigned Code Execution Vulnerability
- Record
CVE-2021-27074- CVSS 3.1
- 6.2 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N/E:P/RL:O/RC:C - Updated
- 2026-11-02
EUVDEUVD-2021-13845
Azure Sphere Unsigned Code Execution Vulnerability
- Record
EUVD-2021-13845- CVSS 3.1
- 6.2 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N/E:P/RL:O/RC:C - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-8434-wqr6-v3mr
Azure Sphere Unsigned Code Execution Vulnerability This CVE ID is unique from CVE-2021-27080.
Azure Sphere Unsigned Code Execution Vulnerability This CVE ID is unique from CVE-2021-27080.
- Record
GHSA-8434-wqr6-v3mr- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N - Updated
- 2026-11-02
NVD
Azure Sphere Unsigned Code Execution Vulnerability
- Record
CVE-2021-27074- CVSS 3.1
- 6.2 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N - CVSS 2.0
- 4.9 Medium
AV:L/AC:L/Au:N/C:N/I:C/A:N - 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-2021-27074 is a medium vulnerability (CVSS 6.2) in Microsoft Azure Sphere, published March 11, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.31%, the 70th percentile. No source names a fixed version.
References
msrc.microsoft.com/update-guide/vulnerability/CVE-2021-27074
portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-27074
talosintelligence.com/vulnerability_reports/TALOS-2021-1247
nvd.nist.gov/vuln/detail/CVE-2021-27074
github.com/advisories/GHSA-8434-wqr6-v3mr