CVE-2021-27074 json
Azure Sphere Unsigned Code Execution Vulnerability
published 2021-03-11 5 y ago modified 2026-08-19 2 mo ago also EUVD-2021-13845
- cvss
- 6.2
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.3%
- EPSS 1.3% chance of exploitation in 30 days, percentile 70%
- public exploits
- 0
- none known
Summary
Azure Sphere Unsigned Code Execution Vulnerability
Patch / fix
Exploit prediction
1.31% chance of exploitation in the next 30 days, higher than 70% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- talosintelligence.com https://www.talosintelligence.com/vulnerability_reports/TALOS-2021-1247 referenced PoC, tagged "exploit" by a source, unverified
- talosintelligence.com https://www.talosintelligence.com/vulnerability_reports/TALOS-2021-1249 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 6.2 | 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 |
| CNA | 3.1 | 6.2 | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
| CNA | 3.1 | 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N |
| NVD | 2.0 | 4.9 | AV:L/AC:L/Au:N/C:N/I:C/A:N |
Affected products
- Microsoft Azure Sphere
References
-
msrc.microsoft.com
/update-guide/vulnerability/CVE-2021-27074
vendor-advisory, patch
-
portal.msrc.microsoft.com
/en-US/security-guidance/advisory/CVE-2021-27074
patch, vendor-advisory
-
talosintelligence.com
/vulnerability_reports/TALOS-2021-1247
exploit, third-party-advisory
-
talosintelligence.com
/vulnerability_reports/TALOS-2021-1249
exploit, third-party-advisory
Sources
- CVE List CVE-2021-27074
- NVD CVE-2021-27074
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.