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Fencer Vulns
high 7.5

CVE-2023-32763 json

An issue was discovered in Qt before 5.15.15, 6.x before 6.2.9, and 6.3.x through 6.5.x before 6.5.1.

published 2023-05-28 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-36987

cvss
7.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.3%
EPSS 1.3% chance of exploitation in 30 days, percentile 70%
public exploits
0
none known

Summary

An issue was discovered in Qt before 5.15.15, 6.x before 6.2.9, and 6.3.x through 6.5.x before 6.5.1. When a SVG file with an image inside it is rendered, a QTextLayout buffer overflow can be triggered.

Patch / fix

  • qt qt 5.15.15, 6.2.9, 6.5.1
  • qt6-base Debian 14, Debian 13, Debian 12 6.4.2+dfsg-8
  • qtbase-opensource-src Debian 14, Debian 13, Debian 12 5.15.8+dfsg-10
  • qtbase-opensource-src-gles Debian 14, Debian 13, Debian 12 5.15.8+dfsg-3

debian advisories DEBIAN-CVE-2023-32763

  • libqt4 SLES for SAP 12 SP5, SLES 12 SP5, SLE Workstation Extension 12 SP5 +1 more 4.8.7-8.19.1
  • libqt4-sql-plugins SLES for SAP 12 SP5, SLES 12 SP5, SLE Workstation Extension 12 SP5 +1 more 4.8.7-8.19.1
  • qt6-base SLE Module for Package Hub 15 SP4, openSUSE Leap 15.4 6.2.2-150400.4.6.1
  • libqt5-qtbase SLE Module for Desktop Applications 15 SP4, SLE Module for Basesystem 15 SP4, openSUSE Leap 15.4 5.15.2+kde294-150400.6.6.1
  • libqt5-qtbase SLES for SAP 15 SP3, SLES for SAP 15 SP2, SLES 15 SP3-LTSS +9 more 5.12.7-150200.4.20.1
  • libqt5-qtbase SLE Module for Desktop Applications 15 SP5, SLE Module for Basesystem 15 SP5, openSUSE Leap 15.5 5.15.8+kde185-150500.4.3.1
  • libqt5-qtbase SLES for SAP 12 SP5, SLES for SAP 12 SP4, SLES 12 SP5 +5 more 5.6.2-6.33.1
  • qt6-base SLE Module for Package Hub 15 SP5, SLE Module for Desktop Applications 15 SP5, openSUSE Leap 15.5 6.4.2-150500.3.3.1

suse advisories SUSE-SU-2025:02968-1SUSE-SU-2023:4622-1SUSE-SU-2023:3380-1SUSE-SU-2023:2982-1SUSE-SU-2023:2860-1SUSE-SU-2023:2824-1

  • libqt5-qtbase openSUSE Tumbleweed 5.15.9+kde154-1.1
  • qt6-base openSUSE Tumbleweed 6.5.2-2.1

opensuse advisories openSUSE-SU-2024:12955-1openSUSE-SU-2024:13147-1

  • qt5-qtbase Alpine 3.24, Alpine 3.23, Alpine 3.22 +4 more 5.15.9_git20230505-r0
  • qt6-qtbase Alpine 3.24, Alpine 3.23, Alpine 3.22 +4 more 6.5.0-r5

alpine advisories ALPINE-CVE-2023-32763

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • qt5-qtbase CBL-Mariner 2.0 5.12.11-8

azure linux advisories AZL-26877

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

Exploit prediction

1.29% chance of exploitation in the next 30 days, higher than 70% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Classification

Weakness
  • CWE-120 Buffer Copy without Checking Size of Input

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.