5.3

CVE-2023-33285: qt Out-of-bounds Read

CVSS: 5.3v3.1MediumModified
AliasesUBUNTU-CVE-2023-33285DEBIAN-CVE-2023-33285openSUSE-SU-2024:13380-1
Published 22-05-2023Last modified 21-01-2025
Open JSON

Vulnerability summary

CVE-2023-33285 is a medium (CVSS 5.3) Out-of-bounds Read vulnerability in qt. EPSS estimates a 0.81% chance of exploitation in the next 30 days, higher than 56.2% of scored vulnerabilities.

Overall risk
21/100
0100
Low · default modelHow is this calculated?
CVSS score
5.3/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.81%
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 11 · Related 8
DLA-3805-1OPENSUSE-SU-2024:13006-1RHSA-2023:6369RHSA-2023:6967SUSE-SU-2023:2971-1SUSE-SU-2023:2982-1

Timeline

  1. 22-05-2023
    PublishedVulnerability first disclosed.
  2. 21-01-2025
    Last modifiedVulnerability information updated.

Description

An issue was discovered in Qt 5.x before 5.15.14, 6.x before 6.2.9, and 6.3.x through 6.5.x before 6.5.1. QDnsLookup has a buffer over-read via a crafted reply from a DNS server.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.81%

Chance of exploitation in the next 30 days

Percentile

56%

Versus all other CVEs

30-day change

0.00 pp

From 0.81% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.81%

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-base< 6.4.2+dfsg-10
  • qtbase-opensource-src< 5.15.8+dfsg-11
  • qtbase-opensource-src-glesAll versions (No fix recorded) | < 5.15.10+dfsg-2
Ubuntu2 products
  • qt6-baseAll versions (No fix recorded)
  • qtbase-opensource-src< 5.5.1+dfsg-16ubuntu7.7+esm1 | < 5.9.5+dfsg-0ubuntu2.6+esm1 | < 5.12.8+dfsg-0ubuntu2.1+esm1 | < 5.15.3+dfsg-2ubuntu0.2+esm1
Opensuse1 product
  • qt6-base&distro=openSUSE Tumbleweed< 6.6.0-3.1
Qt1 product
  • qt≥ 5.0.0, < 5.15.4 | ≥ 6.0.0, < 6.2.9 | ≥ 6.3.0, < 6.5.1

4 vendors · 7 products

References

8 links