7.3

CVE-2026-23236: linux

CVSS: 7.3v3.1HighModified
AliasesUBUNTU-CVE-2026-23236DEBIAN-CVE-2026-23236
Published 04-03-2026Last modified 05-08-2026
Open JSON

Vulnerability summary

CVE-2026-23236 is a high (CVSS 7.3) vulnerability in linux. EPSS estimates a 0.21% chance of exploitation in the next 30 days, higher than 10.5% of scored vulnerabilities.

Overall risk
29/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.3/10
010
High · v3.1 (CVE.org)
EPSS score
0.21%
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 34 · Related 28
DLA-4498-1DLA-4499-1DSA-6162-1DSA-6163-1MGASA-2026-0097MGASA-2026-0098

Timeline

  1. 04-03-2026
    PublishedVulnerability first disclosed.
  2. 05-08-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: fbdev: smscufx: properly copy ioctl memory to kernelspace The UFX_IOCTL_REPORT_DAMAGE ioctl does not properly copy data from userspace to kernelspace, and instead directly references the memory, which can cause problems if invalid data is passed from userspace. Fix this all up by correctly copying the memory before accessing it within the kernel.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.21%

Chance of exploitation in the next 30 days

Percentile

11%

Versus all other CVEs

30-day change

0.00 pp

From 0.21% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.21%

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 | < 6.8.0-134.134
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.15.0-1112.119 | < 6.8.0-1060.63
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 3c8a63e22a0802fd56380f6ab305b419f18eb6f5, < 061cfeb560aa3ddc174153dbe5be9d0b55eb7248 | ≥ 3c8a63e22a0802fd56380f6ab305b419f18eb6f5, < 6167af934f956d3ae1e06d61f45cd0d1004bbe1a | ≥ 3c8a63e22a0802fd56380f6ab305b419f18eb6f5, < a0321e6e58facb39fe191caa0e52ed9aab6a48fe | ≥ 3c8a63e22a0802fd56380f6ab305b419f18eb6f5, < 0634e8d650993602fc5b389ff7ac525f6542e141 | ≥ 3c8a63e22a0802fd56380f6ab305b419f18eb6f5, < 52917e265aa5f848212f60fc50fc504d8ef12866 | ≥ 3c8a63e22a0802fd56380f6ab305b419f18eb6f5, < 1c008ad0f0d1c1523902b9cdb08e404129677bfc | ≥ 3c8a63e22a0802fd56380f6ab305b419f18eb6f5, < f1e91bd4efeae48b0f42caed7e8ce2e3a0d05b02 | ≥ 3c8a63e22a0802fd56380f6ab305b419f18eb6f5, < 120adae7b42faa641179270c067864544a50ab69 | 3.2
  • linux_kernel≥ 3.2, < 5.10.251 | ≥ 5.11, < 5.15.201 | ≥ 5.16, < 6.1.164 | ≥ 6.2, < 6.6.127 | ≥ 6.7, < 6.12.74 | ≥ 6.13, < 6.18.13 | ≥ 6.19, < 6.19.3
Debian1 product
  • linux< 6.1.164-1 | < 6.12.74-2 | < 6.18.13-1

3 vendors · 160 products

References

39 links
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