5.5

CVE-2026-23291: linux

CVSS: 5.5v3.1MediumModified
AliasesUBUNTU-CVE-2026-23291DEBIAN-CVE-2026-23291
Published 25-03-2026Last modified 15-10-2026
Open JSON

Vulnerability summary

CVE-2026-23291 is a medium (CVSS 5.5) vulnerability in linux. EPSS estimates a 0.13% chance of exploitation in the next 30 days, higher than 2% of scored vulnerabilities.

Overall risk
22/100
0100
Low · default modelHow is this calculated?
CVSS score
5.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.13%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 31 · Related 29
MGASA-2026-0097MGASA-2026-0098SUSE-SU-2026:21834-1SUSE-SU-2026:2238-1USN-8567-1USN-8574-1

Timeline

  1. 25-03-2026
    PublishedVulnerability first disclosed.
  2. 15-10-2026
    Last modifiedVulnerability information updated.

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.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.13%

Chance of exploitation in the next 30 days

Percentile

2%

Versus all other CVEs

30-day change

0.00 pp

From 0.12% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.13%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Ubuntu157 products
  • linuxAll versions (No fix recorded) | < 5.15.0-186.196 | < 6.8.0-136.136
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.15.0-1112.119 | < 6.8.0-1061.64
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ c46ee38620a2aa2b25b16bc9738ace80dbff76a4, < 6645b030b0c1fc5bf338bffb0044238f24b2f770 | ≥ c46ee38620a2aa2b25b16bc9738ace80dbff76a4, < 5be8aa2bcfb53158436182db8dee9d0b8e5901e6 | ≥ c46ee38620a2aa2b25b16bc9738ace80dbff76a4, < 7398d6570501edc55a50ece820f369ab3c1df2e7 | ≥ c46ee38620a2aa2b25b16bc9738ace80dbff76a4, < d1f6d20b3c2642ec85ce6ea5da7155746c31c6d0 | ≥ c46ee38620a2aa2b25b16bc9738ace80dbff76a4, < 7ff14eb070f0efecb2606f8d7aa01b77d188e886 | ≥ c46ee38620a2aa2b25b16bc9738ace80dbff76a4, < 00477cab053dc4816b99141d8fcca7a479cfebeb | ≥ c46ee38620a2aa2b25b16bc9738ace80dbff76a4, < 4551d6cea00224ab65a0ef35e4e6da0e9c0a2d74 | ≥ c46ee38620a2aa2b25b16bc9738ace80dbff76a4, < 12133a483dfa832241fbbf09321109a0ea8a520e | 3.1
  • linux_kernel≥ 3.1, < 5.10.253 | ≥ 5.11, < 5.15.203 | ≥ 5.16, < 6.1.167 | ≥ 6.2, < 6.6.130 | ≥ 6.7, < 6.12.77 | ≥ 6.13, < 6.18.17 | ≥ 6.19, < 6.19.7 | 7.0:rc1
Debian1 product
  • linux< 6.1.170-1 | < 6.12.85-1 | < 6.19.8-1

3 vendors · 160 products

References

40 links
Show all 40 references