4.2

CVE-2023-45935: qt6-base Debian NULL Pointer Dereference

CVSS: 4.2v3.1MediumDeferred
AliasesDEBIAN-CVE-2023-45935
Published 27-03-2024Last modified 04-11-2025
Open JSON

Vulnerability summary

CVE-2023-45935 is a medium (CVSS 4.2) NULL Pointer Dereference vulnerability in qt6-base Debian. EPSS estimates a 0.24% chance of exploitation in the next 30 days, higher than 14.3% of scored vulnerabilities.

Overall risk
17/100
0100
Low · default modelHow is this calculated?
CVSS score
4.2/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.24%
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 5 · Related 5
SUSE-SU-2024:2873-1SUSE-SU-2024:2882-1SUSE-SU-2024:2883-1SUSE-SU-2024:2890-1SUSE-SU-2024:2946-1

Timeline

  1. 27-03-2024
    PublishedVulnerability first disclosed.
  2. 04-11-2025
    Last modifiedVulnerability information updated.

Description

Qt 6 through 6.6 was discovered to contain a NULL pointer dereference via the function QXcbConnection::initializeAllAtoms(). NOTE: this is disputed because it is not expected that an X application should continue to run when there is arbitrary anomalous behavior from the X server.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.24%

Chance of exploitation in the next 30 days

Percentile

14%

Versus all other CVEs

30-day change

0.00 pp

From 0.24% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.24%

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

Debian3 products
  • qt6-baseAll versions (No fix recorded)
  • qtbase-opensource-srcAll versions (No fix recorded)
  • qtbase-opensource-src-glesAll versions (No fix recorded)

1 vendor · 3 products

References

4 links