5.5

CVE-2026-100079: linux

CVSS: 5.5v3.1MediumAnalyzed
AliasesUBUNTU-CVE-2026-100079DEBIAN-CVE-2026-100079
Published 25-09-2026Last modified 19-10-2026
Open JSON

Vulnerability summary

CVE-2026-100079 is a medium (CVSS 5.5) vulnerability in linux. EPSS estimates a 0.11% chance of exploitation in the next 30 days, higher than 1.3% 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
0.11%
0%100%
Low · Change unavailable
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 2 · Related 1
MGASA-2026-0506OPENSUSE-SU-2026:12074-1

Timeline

  1. 25-09-2026
    PublishedVulnerability first disclosed.
  2. 19-10-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: usb: typec: ucsi: unregister debugfs entries on teardown ucsi_register() creates per-instance debugfs entries, but ucsi_unregister() keeps them around until ucsi_destroy(). Drivers like ucsi_glink that unregister/register the same UCSI instance across remoteproc restart then try to create an already existing debugfs directory and log: debugfs: 'pmic_glink.ucsi.0' already exists in 'ucsi' Unregister debugfs entries as part of ucsi_unregister(), and clear ucsi->debugfs after freeing it so repeated unregister paths remain safe.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.11%

Chance of exploitation in the next 30 days

Percentile

1%

Versus all other CVEs

30-day change

Change unavailable

Change unavailable

26-09-202619-10-2026
EPSS score
0.11%

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

Ubuntu142 products
  • linuxAll versions (No fix recorded)
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded)
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian2 products
  • linux< 6.12.111-1 | < 7.2.6-1
  • linux-6.12< 6.12.111-1~deb12u1
Linux2 products
  • linux≥ df0383ffad64dc09954a60873c1e202b47f08d90, < fb7393519908befdc094be4ea913f582adbf2f7c | ≥ df0383ffad64dc09954a60873c1e202b47f08d90, < 7177c215e69658adbd2f2fc5b72e14be9208d2ba | ≥ df0383ffad64dc09954a60873c1e202b47f08d90, < 1f44d001620fd3caa30619a9bc73e9d15555408b | ≥ df0383ffad64dc09954a60873c1e202b47f08d90, < 62efee351566321ad72a4abaf6eb7d972590585d | ≥ df0383ffad64dc09954a60873c1e202b47f08d90, < eed73a65ab609b79d53de88cccc34b36dfe753c4 | 6.6
  • linux_kernel≥ 6.6, < 6.6.157 | ≥ 6.7, < 6.12.110 | ≥ 6.13, < 6.18.52 | ≥ 6.19, < 7.2.6

3 vendors · 146 products

References

9 links