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CVE Record

CVE-2020-16982: Azure Sphere Unsigned Code Execution Vulnerability

Azure Sphere Unsigned Code Execution Vulnerability

MediumCVSS 6.1Not KEV-listedUpdated
Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

This vulnerability could let an attacker run unsigned code on Microsoft Azure Sphere version 20.00 devices. The listed impact is serious, but the exploit conditions are restrictive: physical access, high attacker privileges, and high complexity are required. Treat it as important for exposed or accessible devices, not as an internet-scale emergency.

Executive priority

Handle through the normal vulnerability management process with elevated attention for physically accessible devices. Business urgency is moderate because impact is high, but exploitation requires restrictive local conditions and no active exploitation is cited.

Technical view

CVE-2020-16982 is an Azure Sphere unsigned code execution vulnerability affecting version 20.00. CVSS 3.1 is 6.1 with AV:P, AC:H, PR:H, UI:N, and high confidentiality, integrity, and availability impact. The source bundle indicates official remediation is available, but does not describe specific patch steps.

Likely exposure

Exposure is limited to Microsoft Azure Sphere deployments running version 20.00, especially devices where attackers could gain physical access and privileged control. Organizations without Azure Sphere 20.00 are not indicated as affected by the provided sources.

Exploitation context

The CVE is not listed in CISA KEV, and the CVSS exploit maturity is unproven. The provided sources do not cite active exploitation, public weaponization, or internet-reachable attack paths.

Researcher notes

The evidence supports Azure Sphere 20.00 as the affected product. The bundle does not provide root-cause details, proof-of-concept behavior, or specific mitigation mechanics. Avoid assuming broader Azure impact beyond Azure Sphere.

Mitigation direction

  • Inventory Azure Sphere devices and identify any running version 20.00.
  • Review Microsoft MSRC guidance for CVE-2020-16982 before remediation.
  • Apply Microsoft’s official remediation where applicable.
  • Restrict physical access to Azure Sphere devices.
  • Prioritize devices in untrusted or shared physical environments.

Validation and detection

  • Confirm whether Azure Sphere 20.00 exists in asset inventory.
  • Check device release or firmware records against Microsoft guidance.
  • Verify remediation status after applying vendor guidance.
  • Review physical access controls for affected device locations.
  • Document any remaining devices that cannot be remediated immediately.
Prepared
Confidence
high
Sources
5

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

description · low confidence lookup

Execution behavior lookup

The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2020-16982 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
Medium
CVSS
6.1 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:P/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
0Timeline events
0ADP providers
4Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
6.1CVSS 3.1MediumCVSS:3.1/AV:P/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C0.25.9Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

6.1Medium
CVSS 3.1 vector shape for CVE-2020-16982Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:P/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone
Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
MicrosoftAzure Sphere20.00Listed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.