CVE-2026-23291
nfc: pn533: properly drop the usb interface reference on disconnect
Description
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.
INFO
Published Date :
March 25, 2026, 11:16 a.m.
Last Modified :
May 29, 2026, 3:07 p.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- Ensure USB interface reference is properly dropped.
- Drop reference after driver disconnect.
- Update the Linux kernel.
Public PoC/Exploit Available at Github
CVE-2026-23291 has a 1 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-23291.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-23291 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-23291
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
DSA and DLA for Debian last 14 days
Python
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-23291 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-23291 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
May. 29, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Added CWE NVD-CWE-Other Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.19 up to (excluding) 6.19.7 *cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.13 up to (excluding) 6.18.17 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.2 up to (excluding) 6.6.130 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.7 up to (excluding) 6.12.77 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.15.203 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 up to (excluding) 6.1.167 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 3.1 up to (excluding) 5.10.253 Added Reference Type kernel.org: https://git.kernel.org/stable/c/00477cab053dc4816b99141d8fcca7a479cfebeb Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/12133a483dfa832241fbbf09321109a0ea8a520e Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/4551d6cea00224ab65a0ef35e4e6da0e9c0a2d74 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/5be8aa2bcfb53158436182db8dee9d0b8e5901e6 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/6645b030b0c1fc5bf338bffb0044238f24b2f770 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/7398d6570501edc55a50ece820f369ab3c1df2e7 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/7ff14eb070f0efecb2606f8d7aa01b77d188e886 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/d1f6d20b3c2642ec85ce6ea5da7155746c31c6d0 Types: Patch -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Apr. 18, 2026
Action Type Old Value New Value Added Reference https://git.kernel.org/stable/c/5be8aa2bcfb53158436182db8dee9d0b8e5901e6 Added Reference https://git.kernel.org/stable/c/6645b030b0c1fc5bf338bffb0044238f24b2f770 -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Mar. 25, 2026
Action Type Old Value New Value Added Description 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. Added Reference https://git.kernel.org/stable/c/00477cab053dc4816b99141d8fcca7a479cfebeb Added Reference https://git.kernel.org/stable/c/12133a483dfa832241fbbf09321109a0ea8a520e Added Reference https://git.kernel.org/stable/c/4551d6cea00224ab65a0ef35e4e6da0e9c0a2d74 Added Reference https://git.kernel.org/stable/c/7398d6570501edc55a50ece820f369ab3c1df2e7 Added Reference https://git.kernel.org/stable/c/7ff14eb070f0efecb2606f8d7aa01b77d188e886 Added Reference https://git.kernel.org/stable/c/d1f6d20b3c2642ec85ce6ea5da7155746c31c6d0