CRITICAL 9.8 Microsoft

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.

Microsoft Security Update 2023-Dec: 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.

Affected Products

cbl2 qt5-qtbase 5.12.11-15 on CBL Mariner 2.0
cbl2 qt5-qtbase 5.12.11-10 on CBL Mariner 2.0
azl3 qtbase 6.6.2-1 on Azure Linux 3.0
azl3 qtbase 6.6.1-1 on Azure Linux 3.0

References

Published: 2023-12-12 · Source: Microsoft · Feed updated: 2026-09-03

This critical severity vulnerability with a CVSS score of 9.8 was published on 2023-12-12 via Microsoft. Affected: cbl2 qt5-qtbase 5.12.11-15 on CBL Mariner 2.0, cbl2 qt5-qtbase 5.12.11-10 on CBL Mariner 2.0, azl3 qtbase 6.6.2-1 on Azure Linux 3.0 and 1 more.

Risk Timeline

CVE Disclosed2023-12-12 · 995 days ago

Remediation Resources

Official Advisory

msrc.microsoft.com/update-guide/vulnerability/CVE-2023-51714

NVD / MITRE

nvd.nist.gov/vuln/detail/CVE-2023-51714

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