CVE-2023-51714: debian debian_linux Integer Overflow or Wraparound
CVSS: 9.8v3.1CriticalAnalyzed
AliasesSUSE-SU-2024:0063-1SUSE-SU-2024:0138-1UBUNTU-CVE-2023-51714DEBIAN-CVE-2023-51714openSUSE-SU-2024:13553-1openSUSE-SU-2024:13555-1
Published 24-12-2023Last modified 08-10-2026
Vulnerability summary
CVE-2023-51714 is a critical (CVSS 9.8) Integer Overflow or Wraparound vulnerability in debian debian_linux. EPSS estimates a 0.98% chance of exploitation in the next 30 days, higher than 61.5% of scored vulnerabilities.
CVSS score
9.8/10
010
Critical · v3.1 (NVD)EPSS score
0.98%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 6 · Related 3Timeline
- 24-12-2023PublishedVulnerability first disclosed.
- 08-10-2026Last modifiedVulnerability information updated.
Description
An issue was discovered in the HTTP2 implementation in Qt before 5.15.17, 6.x before 6.2.11, 6.3.x through 6.5.x before 6.5.4, and 6.6.x before 6.6.2. network/access/http2/hpacktable.cpp has an incorrect HPack integer overflow check.
CVSS metrics
3 scores · 3 sources · 1 versionCritical 9.8Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.98%
Chance of exploitation in the next 30 days
Percentile
62%
Versus all other CVEs
30-day change
0.00 pp
From 0.98% on 19-09-2026
19-09-202619-10-2026
EPSS score0.98%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Opensuse5 products
- libqt5-qtbase&distro=openSUSE Leap 15.5< 5.15.8+kde185-150500.4.16.1
- libqt5-qtbase&distro=openSUSE Tumbleweed< 5.15.12+kde147-1.1
- qt6-base-docs&distro=openSUSE Leap 15.5< 6.4.2-150500.3.14.1
- qt6-base&distro=openSUSE Leap 15.5< 6.4.2-150500.3.14.1
- qt6-base&distro=openSUSE Tumbleweed< 6.6.1-5.1
Debian4 products
- qt6-baseAll versions (No fix recorded) | < 6.4.2+dfsg-21
- qtbase-opensource-src< 5.15.8+dfsg-11+deb12u2 | < 5.15.10+dfsg-6
- qtbase-opensource-src-glesAll versions (No fix recorded) | < 5.15.10+dfsg-4
- debian_linuxEOL10.0
Suse4 products
- libqt5-qtbase&distro=SUSE Linux Enterprise Module for Basesystem 15 SP5< 5.15.8+kde185-150500.4.16.1
- libqt5-qtbase&distro=SUSE Linux Enterprise Module for Desktop Applications 15 SP5< 5.15.8+kde185-150500.4.16.1
- qt6-base&distro=SUSE Linux Enterprise Module for Desktop Applications 15 SP5< 6.4.2-150500.3.14.1
- qt6-base&distro=SUSE Linux Enterprise Module for Package Hub 15 SP5< 6.4.2-150500.3.14.1
Ubuntu3 products
- qt6-baseAll versions (No fix recorded)
- qtbase-opensource-src< 5.9.5+dfsg-0ubuntu2.6+esm2 | < 5.12.8+dfsg-0ubuntu2.1+esm3 | < 5.15.3+dfsg-2ubuntu0.2+esm3
- qtbase-opensource-src-glesAll versions (No fix recorded)
Qt1 product
- qt≥ 5.7, < 5.15.17 | ≥ 6.0.0, < 6.2.11 | ≥ 6.3.0, < 6.5.4 | ≥ 6.6.0, < 6.6.2
5 vendors · 17 products
