CVE-2023-1902

HCI Connection Creation Dangling State Reference Re-use

HIGH
8
CVSS Score
Published: July 10, 2023 at 04:30 AM UTC
Updated: June 17, 2026 at 05:28 AM UTC
2 products affected across 2 vendorsZephyrZephyr

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Severity
HIGH8
Exploit prediction
EPSS 0.6%
SSVC
PoC

Description

The bluetooth HCI host layer logic not clearing a global reference to a state pointer after handling connection events may allow a malicious HCI Controller to cause the use of a dangling reference in the host layer, leading to a crash (DoS) or potential RCE on the Host layer.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
ADJACENT_NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-416CWE-672

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