Security readout for executives and security teams
This vulnerability can let a nearby Bluetooth actor crash affected Zephyr-based devices by triggering an assertion. The business impact is availability: devices may stop responding or require recovery. The provided sources do not identify data theft, privilege escalation, active exploitation, or a specific fixed release. Exposure is most likely in Bluetooth-enabled embedded or IoT products built with affected Zephyr releases. The bundle identifies Zephyr versions >= v1.14 and affected entries v1.14.0 and v2.5.0, but does not provide a complete version range or fixed version. Treat as a moderate availability risk. It deserves timely firmware review for Bluetooth-enabled products, especially deployed devices where a local denial of service could disrupt operations or require manual recovery. Mitigation focus: Check Zephyr advisory GHSA-46h3-hjcq-2jjr for vendor-supported fixed versions or patches.; Inventory products and firmware using Zephyr Bluetooth from v1.14 onward.; Prioritize updates for devices where downtime creates safety, operational, or customer impact..
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-617: Exact CWE lookup
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Open ATT&CK lookupCVE-2021-3430 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:N/I:N/A:H
CNA and ADP enrichment extracted from CVE v5
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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:N/I:N/A:H2.83.6Primary 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:N/I:N/A:H
Source materials
- CVE List V5 sourceCVE List V5
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.
Reachable Assertion
Reachable Assertion represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.