Integer overflow in Qt
CVE-2023-51714
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.
Vulnerability class: Integer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.010 (60.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 61st percentile — 60.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: 0.000
Affected products
- Qt
- Debian Linux — versions 10.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- codereview.qt-project.org/c/qt/qtbase/+/524864 (Product, Patch)
- codereview.qt-project.org/c/qt/qtbase/+/524865/3 (Product, Patch)
- lists.debian.org/debian-lts-announce/2024/04/msg00027.html (mailing-list, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2023-51714?
- CVE-2023-51714 is a critical-severity vulnerability in Qt, classified under Integer Overflow or Wraparound. CVSS score: 9.8/10. Published 2023-12-24.
- How severe is CVE-2023-51714?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2023-51714 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.