CVE reports

The Common Vulnerabilities and Exposures (CVE) system is used to identify, define, and catalog publicly disclosed cybersecurity vulnerabilities. Canonical keeps track of all CVEs affecting Ubuntu, and releases a security notice when an issue is fixed. You can find additional guidance for high-profile vulnerabilities in the Ubuntu Vulnerability Knowledge Base section

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Recent CVEs

CVE-2026-74535

High priority
Vulnerable

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: avoid deadlocks in iso_sock_timeout iso_sock_timeout() takes lock_sock, so sync disabling the timer while holding that lock may...

164 affected packages

linux, linux-hwe, linux-hwe-5.4, linux-hwe-5.8, linux-hwe-5.11...

CVE-2026-74534

High priority
Vulnerable

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: fix refcounting of iso_conn iso_conn_del() and iso_chan_del() have a race that results to double-put of iso_conn: [Task hdev->workqueue] ...

164 affected packages

linux, linux-hwe, linux-hwe-5.4, linux-hwe-5.8, linux-hwe-5.11...

CVE-2026-74529

High priority
Vulnerable

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_sync: hold conn in hci_connect_pa_sync() callback There is theoretical UAF if the conn is freed while the hci_sync task is running. Hold refcount...

164 affected packages

linux, linux-hwe, linux-hwe-5.4, linux-hwe-5.8, linux-hwe-5.11...

CVE-2026-74510

High priority
Vulnerable

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: mgmt: fix UAF in pair command cancellation The pairing completion and authentication failure callbacks look up the pending MGMT_OP_PAIR_DEVICE command...

164 affected packages

linux, linux-hwe, linux-hwe-5.4, linux-hwe-5.8, linux-hwe-5.11...

CVE-2026-74506

High priority
Vulnerable

In the Linux kernel, the following vulnerability has been resolved: afs: Fix UAF when sending a message In afs_make_call(), there's a race with async call reception and destruction. If a call is dispatched that doesn't have...

164 affected packages

linux, linux-hwe, linux-hwe-5.4, linux-hwe-5.8, linux-hwe-5.11...

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