What is CVE-2026-74539?

CVE-2026-74539 is a unscored severity Linux kernel vulnerability, affecting Linux kernel versions from 6.16 onward and patched in 6.18.44, 7.1.8 and 7.2-rc6. CVE-2026-74539 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2026-74539?

CVE-2026-74539 has a CVSS score of pending NVD analysis out of 10, rated awaiting scoring severity.

Is there a patch available for CVE-2026-74539?

Yes, CVE-2026-74539 has been patched. Fixed versions include 6.18.44, 7.1.8 and 7.2-rc6. If you are running Linux kernel 6.16 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2026-74539 actively exploited?

CVE-2026-74539 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2026-74539

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: lock sk in iso_sock_getname Accessing iso_pi(sk)->conn requires lock_sock, which is not held here. Fix by adding the lock/release.

Package Linux Kernel

Published 2026-08-15

Last modified 2026-08-15

Patch available

Yes

Affected versions

Linux kernel versions 6.16 and later are affected. Fixed in 6.18.44, 7.1.8, 7.2-rc6 and their respective stable series.

Affected from

≥ 6.16

Fixed in

✓ 6.18.44 6.18.x ✓ 7.1.8 7.1.x ✓ 7.2-rc6

References

3 total

Frequently asked questions

What is CVE-2026-74539?

CVE-2026-74539 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 6.16 onward and has been patched in 6.18.44, 7.1.8 and 7.2-rc6. CVE-2026-74539 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
Is there a patch available for CVE-2026-74539?

Yes. CVE-2026-74539 has been patched. Fixed versions include 6.18.44, 7.1.8 and 7.2-rc6. If you are running Linux kernel 6.16 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2026-74539 actively exploited?

No. CVE-2026-74539 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.