CVE-2026-43334
説明
A flaw was found in the Linux kernel's Bluetooth Security Manager Protocol (SMP). An attacker could exploit this vulnerability during the Bluetooth pairing process by manipulating authentication requirements. This could lead to the selection of a weaker pairing method than intended, potentially allowing a remote attacker to conduct a Man-in-the-Middle (MITM) attack and intercept or alter communications between paired devices.
CVSS (Common Vulnerability Scoring System) のスコアの詳細
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
CVSS v3 スコアの内訳
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| ベーススコア | 7 | N/A | 8.8 |
| 攻撃ベクトル | Local | N/A | Adjacent Network |
| 攻撃の複雑さ | High | N/A | Low |
| 必要な権限 | Low | N/A | None |
| ユーザー関与レベル | None | N/A | None |
| 範囲 | Unchanged | N/A | Unchanged |
| 機密性 | High | N/A | High |
| 完全性への影響 | High | N/A | High |
| 可用性への影響 | High | N/A | High |
ベクトル
Red Hat: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
cve.org: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
脆弱性の原因 (CWE) の理解
Access Control
Technical Impact: Bypass Protection Mechanism
No authentication takes place in this process, bypassing an assumed protection of encryption.
Confidentiality
Technical Impact: Read Application Data
The encrypted communication between a user and a trusted host may be subject to sniffing by any actor in the communication path.
よくある質問
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