CVE-2021-26430
Azure Sphere Denial of Service Vulnerability
6.0 Medium
Azure Sphere Denial of Service Vulnerability
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- High
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
0.73%Up 0.2 points since Aug 13, 2021
What each source reports
CVE List Score used
Azure Sphere Denial of Service Vulnerability
Azure Sphere Denial of Service Vulnerability
- Record
CVE-2021-26430- CVSS 3.1
- 6.0 Medium
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H/E:P/RL:O/RC:C - Updated
- 2026-11-02
EUVDEUVD-2021-13235
Azure Sphere Denial of Service Vulnerability
- Record
EUVD-2021-13235- CVSS 3.1
- 6.0 Medium
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H/E:P/RL:O/RC:C - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-c556-742c-cv9q
Azure Sphere Denial of Service Vulnerability
Azure Sphere Denial of Service Vulnerability
- Record
GHSA-c556-742c-cv9q- CVSS 3.1
- 6.0 Medium
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H - Updated
- 2026-11-02
NVD
Azure Sphere Denial of Service Vulnerability
- Record
CVE-2021-26430- CVSS 3.1
- 6.0 Medium
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H - CVSS 3.1
- 4.4 Medium
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H - CVSS 2.0
- 2.1 Low
AV:L/AC:L/Au:N/C:N/I:N/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-2021-26430 is a medium vulnerability (CVSS 6.0) 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 0.73%, the 54th percentile. No source names a fixed version.