CVE-2024-39936
An issue was discovered in HTTP2 in Qt before 5.15.18, 6.x before 6.2.13, 6.3.x through 6.5.x before 6.5.7, and 6.6.x through 6.7.x before 6.7.3. Code to make security-relevant decisions about an
02 Description
An issue was discovered in HTTP2 in Qt before 5.15.18, 6.x before 6.2.13, 6.3.x through 6.5.x before 6.5.7, and 6.6.x through 6.7.x before 6.7.3. Code to make security-relevant decisions about an
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 0.49% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 41.8% of scored records. A rank, not a probability.
- NVD base score
- 5.9 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Important. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2024-07-04 00:00Z2 YR AGO
- Last updated
- 2025-11-29 13:09Z11 MO AGO
- Reserved
- 2024-07-04
- Assigning CNA
- mitre
- Record state
- PUBLISHED
- Severity
- High (CVSS 8.6)
- CNA CVSS vector
- CVSS:3.1/AC:L/AV:N/A:N/C:H/I:N/PR:N/S:C/UI:N
- Weaknesses
- CWE-367Time-of-check Time-of-use (TOCTOU) Race ConditionBase
- Data version
- 5.2
- Document digest
- 819cfdfbdd31a905ae6b694a36f069e4c6a4e7ad833e6793391138bc41532254
05 Affected products
06 References
- codereview.qt-project.orghttps://codereview.qt-project.org/c/qt/qtbase/+/571601
- lists.debian.orghttps://lists.debian.org/debian-lts-announce/2025/11/msg00031.html
07 Fixed in
AlmaLinux 8
- qt5-qtbase Fixed in 5.15.3-8.el8_10
- qt5-qtbase-common Fixed in 5.15.3-8.el8_10
- qt5-qtbase-devel Fixed in 5.15.3-8.el8_10
- qt5-qtbase-examples Fixed in 5.15.3-8.el8_10
- qt5-qtbase-gui Fixed in 5.15.3-8.el8_10
- qt5-qtbase-mysql Fixed in 5.15.3-8.el8_10
- qt5-qtbase-odbc Fixed in 5.15.3-8.el8_10
- qt5-qtbase-postgresql Fixed in 5.15.3-8.el8_10
- qt5-qtbase-private-devel Fixed in 5.15.3-8.el8_10
- qt5-qtbase-static Fixed in 5.15.3-8.el8_10
Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
AlmaLinux 9
- qt5-qtbase Fixed in 5.15.9-10.el9_4
- qt5-qtbase-common Fixed in 5.15.9-10.el9_4
- qt5-qtbase-devel Fixed in 5.15.9-10.el9_4
- qt5-qtbase-examples Fixed in 5.15.9-10.el9_4
- qt5-qtbase-gui Fixed in 5.15.9-10.el9_4
- qt5-qtbase-mysql Fixed in 5.15.9-10.el9_4
- qt5-qtbase-odbc Fixed in 5.15.9-10.el9_4
- qt5-qtbase-postgresql Fixed in 5.15.9-10.el9_4
- qt5-qtbase-private-devel Fixed in 5.15.9-10.el9_4
- qt5-qtbase-static Fixed in 5.15.9-10.el9_4
Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
CloudLinux 8
- qt5-qtbase Fixed in 5.15.3-8.el8_10
- qt5-qtbase-common Fixed in 5.15.3-8.el8_10
- qt5-qtbase-devel Fixed in 5.15.3-8.el8_10
- qt5-qtbase-examples Fixed in 5.15.3-8.el8_10
- qt5-qtbase-gui Fixed in 5.15.3-8.el8_10
- qt5-qtbase-mysql Fixed in 5.15.3-8.el8_10
- qt5-qtbase-odbc Fixed in 5.15.3-8.el8_10
- qt5-qtbase-postgresql Fixed in 5.15.3-8.el8_10
- qt5-qtbase-private-devel Fixed in 5.15.3-8.el8_10
- qt5-qtbase-static Fixed in 5.15.3-8.el8_10
Derived from AlmaLinux 8. Partial coverage: only packages taken from AlmaLinux 8 are listed.
Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
CloudLinux 9
- qt5-qtbase Fixed in 5.15.9-10.el9_4
- qt5-qtbase-common Fixed in 5.15.9-10.el9_4
- qt5-qtbase-devel Fixed in 5.15.9-10.el9_4
- qt5-qtbase-examples Fixed in 5.15.9-10.el9_4
- qt5-qtbase-gui Fixed in 5.15.9-10.el9_4
- qt5-qtbase-mysql Fixed in 5.15.9-10.el9_4
- qt5-qtbase-odbc Fixed in 5.15.9-10.el9_4
- qt5-qtbase-postgresql Fixed in 5.15.9-10.el9_4
- qt5-qtbase-private-devel Fixed in 5.15.9-10.el9_4
- qt5-qtbase-static Fixed in 5.15.9-10.el9_4
Derived from AlmaLinux 9. Partial coverage: only packages taken from AlmaLinux 9 are listed.
Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
Debian 12
- qt6-base No fix yet
- qtbase-opensource-src Fixed in 5.15.8+dfsg-11+deb12u3
- qtbase-opensource-src-gles No fix yet
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- qt6-base Fixed in 6.8.2+dfsg-5
- qtbase-opensource-src Fixed in 5.15.13+dfsg-3
- qtbase-opensource-src-gles No fix yet
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- qt6-base Fixed in 6.8.2+dfsg-5
- qtbase-opensource-src Fixed in 5.15.13+dfsg-3
- qtbase-opensource-src-gles No fix yet
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 22.04 LTS
- qtbase-opensource-src No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 24.04 LTS
- qtbase-opensource-src No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 20.04 LTS
- qtbase-opensource-src Fixed in 5.12.8+dfsg-0ubuntu2.1+esm3Available with Ubuntu Pro: https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 22.04 LTS
- qtbase-opensource-src Fixed in 5.15.3+dfsg-2ubuntu0.2+esm3Available with Ubuntu Pro: https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 24.04 LTS
- qtbase-opensource-src Fixed in 5.15.13+dfsg-1ubuntu1+esm1Available with Ubuntu Pro: https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.