7.1

CVE-2021-3481: qt Out-of-bounds Read

CVSS: 7.1v3.1HighModified
AliasesMGASA-2021-0262SUSE-SU-2021:3333-1SUSE-SU-2021:3354-1
Published 22-08-2022Last modified 03-08-2024
Open JSON

Vulnerability summary

CVE-2021-3481 is a high (CVSS 7.1) Out-of-bounds Read vulnerability in qt. EPSS estimates a 0.55% chance of exploitation in the next 30 days, higher than 44.7% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
39/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.1/10
010
High · v3.1 (NVD)
EPSS score
0.55%
0%100%
Low · +0.01 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference

Advisory lineage

Upstream 0 · Downstream 6 · Related 3
DLA-2885-1DLA-2895-1DLA-3539-1SUSE-SU-2021:4155-1USN-5241-1USN-8337-1

Timeline

  1. 22-08-2022
    PublishedVulnerability first disclosed.
  2. 03-08-2024
    Last modifiedVulnerability information updated.

Description

A flaw was found in Qt. An out-of-bounds read vulnerability was found in QRadialFetchSimd in qt/qtbase/src/gui/painting/qdrawhelper_p.h in Qt/Qtbase. While rendering and displaying a crafted Scalable Vector Graphics (SVG) file this flaw may lead to an unauthorized memory access. The highest threat from this vulnerability is to data confidentiality and the application availability.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.55%

Chance of exploitation in the next 30 days

Percentile

45%

Versus all other CVEs

30-day change

+0.01 pp

From 0.54% on 18-09-2026

18-09-202618-10-2026
EPSS score
0.55%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • referenceUnverified

    Exploit Reference (bugreports.qt.io)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Redhat190 products
  • adwaita-qt< 0:1.2.1-3.el8
  • adwaita-qt-debuginfo< 0:1.2.1-3.el8
  • adwaita-qt-debugsource< 0:1.2.1-3.el8
  • adwaita-qt5< 0:1.2.1-3.el8
  • adwaita-qt5-debuginfo< 0:1.2.1-3.el8
Mageia4 products
  • qt4< 4.8.7-26.3.mga7
  • qtsvg5< 5.12.6-1.1.mga7
  • qt4< 4.8.7-35.1.mga8
  • qtsvg5< 5.15.2-1.1.mga8
Opensuse2 products
  • libqt5-qtsvg&distro=openSUSE Leap 15.2< 5.12.7-lp152.2.3.1
  • libqt5-qtsvg&distro=openSUSE Leap 15.3< 5.12.7-3.3.1
Ubuntu2 products
  • qt4-x11All versions (No fix recorded)
  • qtsvg-opensource-src< 5.5.1-2ubuntu0.1~esm1 | < 5.9.5-0ubuntu1.1 | < 5.12.8-0ubuntu1+esm1
Debian1 product
  • qtsvg-opensource-src< 5.15.2-3
Qt1 product
  • qtEOL5.15.1 | 6.0.0 | 6.0.2 | 6.2.0

6 vendors · 200 products · Showing 200 of 231. Use Open JSON for the complete list.

References

56 links
Show all 56 references