5.5

CVE-2026-23091: linux

CVSS: 5.5v3.1MediumModified
AliasesUBUNTU-CVE-2026-23091DEBIAN-CVE-2026-23091
Published 04-02-2026Last modified 19-10-2026
Open JSON

Vulnerability summary

CVE-2026-23091 is a medium (CVSS 5.5) vulnerability in linux. EPSS estimates a 0.14% chance of exploitation in the next 30 days, higher than 3.2% 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
0.14%
0%100%
Low · +0.02 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 43 · Related 38
DLA-4475-1DLA-4476-1DSA-6126-1DSA-6127-1MGASA-2026-0097MGASA-2026-0098

Timeline

  1. 04-02-2026
    PublishedVulnerability first disclosed.
  2. 19-10-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: intel_th: fix device leak on output open() Make sure to drop the reference taken when looking up the th device during output device open() on errors and on close(). Note that a recent commit fixed the leak in a couple of open() error paths but not all of them, and the reference is still leaking on successful open().

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.14%

Chance of exploitation in the next 30 days

Percentile

3%

Versus all other CVEs

30-day change

+0.02 pp

From 0.13% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.14%

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

Affected systems

Ubuntu156 products
  • linuxAll versions (No fix recorded) | < 5.15.0-176.186 | < 6.8.0-117.117 | < 6.17.0-22.22
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.15.0-1105.112 | < 6.8.0-1055.58 | < 6.17.0-1012.12
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 39f4034693b7c7bd1fe4cb58c93259d600f55561, < af4b9467296b9a16ebc008147238070236982b6d | ≥ 39f4034693b7c7bd1fe4cb58c93259d600f55561, < 64015cbf06e8bb75b81ae95b997e847b55280f7f | ≥ 39f4034693b7c7bd1fe4cb58c93259d600f55561, < b71e64ef7ff9443835d1333e3e80ab1e49e5209f | ≥ 39f4034693b7c7bd1fe4cb58c93259d600f55561, < bf7785434b5d05d940d936b78925080950bd54dd | ≥ 39f4034693b7c7bd1fe4cb58c93259d600f55561, < 0fca16c5591534cc1fec8b6181277ee3a3d0f26c | ≥ 39f4034693b7c7bd1fe4cb58c93259d600f55561, < f9b059bda4276f2bb72cb98ec7875a747f042ea2 | ≥ 39f4034693b7c7bd1fe4cb58c93259d600f55561, < 95fc36a234da24bbc5f476f8104a5a15f99ed3e3 | 4.4
  • linux_kernel≥ 4.4, < 5.10.249 | ≥ 5.11, < 5.15.199 | ≥ 5.16, < 6.1.162 | ≥ 6.2, < 6.6.122 | ≥ 6.7, < 6.12.68 | ≥ 6.13, < 6.18.8 | 6.19:rc1 | 6.19:rc2 | 6.19:rc3 | 6.19:rc4 | 6.19:rc5 | 6.19:rc6
Debian1 product
  • linux< 6.1.162-1 | < 6.12.69-1 | < 6.18.8-1

3 vendors · 159 products

References

40 links
Show all 40 references