CVE-2026-52918
What it is
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: serialize accept_q access bt_sock_poll() walks the accept queue without synchronization, while child teardown can unlink the same socket and drop its last reference. The unsynchronized accept queue walk has existed since the initial Bluetooth import. Protect accept_q with a dedicated lock for queue updates and polling. Also rework bt_accept_dequeue() to take temporary child references under the queue lock before dropping it and locking the child socket.
At a glance
- Exploitability
- Can be exploited from the same network segment without logging in. High risk of data exposure, data tampering, service disruption.
- Exploit odds
- 0.2% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.2% in the next 30 days (EPSS).
- Severity: 8.8 HIGH (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.2% · EPSS, next 30 days
- Weakness
- CWE-362 · Race condition
- Record status
- Modified
Affected
- Linux Kernel < 5.10.259
- Linux Kernel < 5.15.210
- Linux Kernel < 6.1.176
- Linux Kernel < 6.6.142
- Linux Kernel < 6.12.92
- Linux Kernel < 6.18.34
- Linux Kernel < 7.0.11
- Linux Kernel 2.6.12
Attack profile CVSS 3.1 · 8.8
- Attack vector
- Adjacent network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Raw vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2026-52918.md and follow it. Check whether this project is affected by CVE-2026-52918. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://git.kernel.org/stable/c/41c8c1c7923e86e0eb59cfb4279349112756a336
- https://git.kernel.org/stable/c/4ec17782fd186f901a7329605d11048b085b945a
- https://git.kernel.org/stable/c/85f8674cae82053f1e6bab295f6a8422cca14db5
- https://git.kernel.org/stable/c/8b4c412e001b0c670eb937beab491af974da55b3
- https://git.kernel.org/stable/c/a218bf69eb51fefe59a3976fa8925261141f681c
- https://git.kernel.org/stable/c/be43e6b4043113c3b3cf887c3c8350f67140274c
- https://git.kernel.org/stable/c/d9ce4de05df2385c19e2c7d12f529144e1a44af1
- https://git.kernel.org/stable/c/e83f5e24da741fa9405aeeff00b08c5ee7c37b88
References
- https://git.kernel.org/stable/c/41c8c1c7923e86e0eb59cfb4279349112756a336
- https://git.kernel.org/stable/c/4ec17782fd186f901a7329605d11048b085b945a
- https://git.kernel.org/stable/c/85f8674cae82053f1e6bab295f6a8422cca14db5
- https://git.kernel.org/stable/c/8b4c412e001b0c670eb937beab491af974da55b3
- https://git.kernel.org/stable/c/a218bf69eb51fefe59a3976fa8925261141f681c
- https://git.kernel.org/stable/c/be43e6b4043113c3b3cf887c3c8350f67140274c
- https://git.kernel.org/stable/c/d9ce4de05df2385c19e2c7d12f529144e1a44af1
- https://git.kernel.org/stable/c/e83f5e24da741fa9405aeeff00b08c5ee7c37b88
- https://cert-portal.siemens.com/productcert/html/ssa-784472.html