CVE-2026-74530
Last modified
CVE-2026-74530 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_sync: hold conn in hci_connect_big_sync() callback There is theoretical UAF if the conn is freed while the hci_sync task is running. Hold refcount to avoid that. Handle NULL hcon, return 0 + do nothing to match the previous behavior.. EPSS estimates a 0.15% chance of exploitation in the next 30 days.
Description
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_sync: hold conn in hci_connect_big_sync() callback There is theoretical UAF if the conn is freed while the hci_sync task is running. Hold refcount to avoid that. Handle NULL hcon, return 0 + do nothing to match the previous behavior.
Metrics
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= 024421cf39923927ab2b5fe895d1d922b9abe67f, < 2d91e6244b69d752503b2d44020d8b0e323dbd38; >= 024421cf39923927ab2b5fe895d1d922b9abe67f, < 56e78b670356caab0b607e8aad4cf819a1909d07; 620810ac1f7f1133a9ac403e132b3ad6995ddf39; ee0586ad64a805eaf1a9a10100e908627a561e34; >= 6.12.28, < 6.13; >= 6.14.6, < 6.15 |
| Linux | Linux | 6.15 |
References
Timeline
- Published
- Last Modified
- Status
- Received
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- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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