CVE-2026-23291

nfc: pn533: properly drop the usb interface reference on disconnect

CVE-2026-23291 is fixed in 11 products on 1 platform, first by DEBIAN-CVE-2026-23291, released March 25, 2026. It is not reported as exploited. Patch Radar priority: Routine.

Routine

CVSS

5.5

Moderate

Exploitation

None reported

No vendor assessment

CISA KEV

Not listed

Not in the Known Exploited Vulnerabilities catalog

EPSS

0.0013

2nd percentile

In the Linux kernel, the following vulnerability has been resolved: nfc: pn533: properly drop the usb interface reference on disconnect When the device is disconnected from the driver, there is a "dangling" reference count on the usb interface that was grabbed in the probe callback. Fix this up by properly dropping the reference after we are done with it.

Where it's fixed

Product	Fixed in	Fix	Released
Linux
kernel-64kb · sles 15.7	6.4.0-150700.53.55.1	SUSE-SU-2026:2238-1	Jun 30, 2026
kernel-azure · sles 15.7	6.4.0-150700.53.55.1	SUSE-SU-2026:2238-1	Jun 30, 2026
kernel-default · sles 15.7	6.4.0-150700.53.55.1	SUSE-SU-2026:2238-1	Jun 30, 2026
kernel-default-base · sles 15.7	6.4.0-150700.53.55.1.150700.17.33.1	SUSE-SU-2026:2238-1	Jun 30, 2026
kernel-docs · sles 15.7	6.4.0-150700.53.55.1	SUSE-SU-2026:2238-1	Jun 30, 2026
kernel-livepatch-SLE15-SP7_Update_15 · sles 15.7	1-150700.15.3.1	SUSE-SU-2026:2238-1	Jun 30, 2026
kernel-obs-build · sles 15.7	6.4.0-150700.53.55.1	SUSE-SU-2026:2238-1	Jun 30, 2026
kernel-source · sles 15.7	6.4.0-150700.53.55.1	SUSE-SU-2026:2238-1	Jun 30, 2026
kernel-syms · sles 15.7	6.4.0-150700.53.55.1	SUSE-SU-2026:2238-1	Jun 30, 2026
kernel-zfcpdump · sles 15.7	6.4.0-150700.53.55.1	SUSE-SU-2026:2238-1	Jun 30, 2026
linux · Debian 12.15 (bookworm)	6.1.170-1	DEBIAN-CVE-2026-23291	Mar 25, 2026
linux · Debian 13.5 (trixie)	6.12.85-1	DEBIAN-CVE-2026-23291	Mar 25, 2026
linux · Debian 14	6.19.8-1	DEBIAN-CVE-2026-23291	Mar 25, 2026

Details

Published
March 25, 2026
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Vendor advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-23291

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