Security readout for executives and security teams
Plain-English summary
CVE-2022-20361 affects Android Bluetooth handling. A nearby attacker could potentially abuse Cross-Transport Key Derivation behavior to gain elevated access without user interaction. The issue is not described as internet-exploitable, but it matters for managed Android fleets, especially devices using Bluetooth in public or shared spaces.
Executive priority
Treat this as a moderate-priority mobile fleet issue. It is proximity-limited, but requires no user interaction and may expose sensitive data. Update affected Android devices through normal security patch channels and prioritize high-risk environments.
Technical view
The flaw is in Android btif_dm_auth_cmpl_evt in btif_dm.cc and relates to Cross-Transport Key Derivation weakness in the Bluetooth standard. The CVSS 3.1 vector is AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N, meaning adjacent access, low complexity, no privileges, no user interaction, and high confidentiality impact.
Likely exposure
Exposure is limited to affected Android 10, 11, 12, and 12L devices, especially where Bluetooth is enabled. The adjacent attack vector suggests an attacker must be within Bluetooth range rather than remote over the internet.
Exploitation context
The provided sources do not report active exploitation, and the CVE is not listed as KEV. Public evidence here supports potential nearby Bluetooth-based exploitation without user interaction, but does not provide confirmed exploitation in the wild.
Researcher notes
Evidence is concise and Android-specific. The weakness is tied to Bluetooth Cross-Transport Key Derivation and Android’s btif_dm_auth_cmpl_evt handling. Sources do not name exploit tooling, detailed prerequisites beyond adjacent access, or non-Android affected products.
Mitigation direction
- Apply Android security updates covering the August 2022 bulletin or later.
- Confirm OEM firmware includes a fix for Android ID A-231161832.
- Prioritize updates for devices with Bluetooth enabled in public environments.
- Where updates are unavailable, review vendor guidance for compensating controls.
Validation and detection
- Inventory devices running Android 10, 11, 12, or 12L.
- Check each device security patch level against the August 2022 Android bulletin.
- Confirm vendor advisories reference CVE-2022-20361 or A-231161832.
- Review fleet policy for Bluetooth usage on unsupported or unpatched devices.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
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ATT&CK lookup starting points
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CWE-269: Authorization and privilege behavior lookup
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Open ATT&CK lookupCVE-2022-20361 mapping review
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Open ATT&CK lookup- Severity
- Medium
- CVSS
- 6.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
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.
CVSS vector scores
1 official scoreWe 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.
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N2.83.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
6.5MediumVector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://source.android.com/security/bulletin/2022-08-01CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Privilege Management
Improper Privilege Management represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.