CVE-2026-43018
highIn the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_event: fix potential UAF in hci_le_remote_conn_param_req_evt hci_conn look…
Vendor / product: Linux — linux kernel
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_event: fix potential UAF in hci_le_remote_conn_param_req_evt hci_conn lookup and field access must be covered by hdev lock in hci_le_remote_conn_param_req_evt, otherwise it's possible it is freed concurrently. Extend the hci_dev_lock critical section to cover all conn usage.
CVSS
8.8
8.8 (CVSS v3.1)
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Severity source: NVD CVSS v3.1 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)
Timeline (UTC)
Published: 2026-05-01 15:16
Modified: 2026-11-11 23:10
NVD status: Modified
Last synced 3 hours ago
Verified against the source API 2026-11-11 23:13 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
linux / linux_kernel ≥5.17 <6.1.168, ≥6.2 <6.6.134, ≥6.7 <6.12.81, ≥6.13 <6.18.22, ≥6.19 <6.19.12, 7.0
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
Patch / mitigation: https://git.kernel.org/stable/c/1d0bdbfe3e91c11f0a704c52443a9446a10d699c
Patch / mitigation: https://git.kernel.org/stable/c/59eecf0ffde15670e6a5e10c47be67f73d843b20
Patch / mitigation: https://git.kernel.org/stable/c/5fb69e1eeea9d6cba80517e9f058b56b34bc3a81
Patch / mitigation: https://git.kernel.org/stable/c/7cadb03be37e761130edb153544fe0770a842b19
Patch / mitigation: https://git.kernel.org/stable/c/b255531b27da336571411248c2a72a350662bd09
Patch / mitigation: https://git.kernel.org/stable/c/ea3cd36d7382d5f8309df04c275d20df139ed42c
References
- https://git.kernel.org/stable/c/1d0bdbfe3e91c11f0a704c52443a9446a10d699c 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- https://git.kernel.org/stable/c/59eecf0ffde15670e6a5e10c47be67f73d843b20 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- https://git.kernel.org/stable/c/5fb69e1eeea9d6cba80517e9f058b56b34bc3a81 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- https://git.kernel.org/stable/c/7cadb03be37e761130edb153544fe0770a842b19 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- https://git.kernel.org/stable/c/b255531b27da336571411248c2a72a350662bd09 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- https://git.kernel.org/stable/c/ea3cd36d7382d5f8309df04c275d20df139ed42c 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Data sources
NVD CVE API 2.0 — fetched 2026-11-11 23:13 UTC · record ↗