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TI-2023-28356 Aliases CVE-2023-51714GHSA-4fvr-x23f-jwc4

An issue was discovered in the HTTP2 implementation in Qt before 5.15.17, 6.x before…

Priority MEDIUM 51CWE-190Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Partial Red Hat: 4 fixed, 2 without a fix

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-190 and the CVSS impact.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00978 62nd percentileScored 2026-11-07
Fix Partial Red Hat: 2 advisoriesRed Hat: 4 fixed, 2 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*10.0VulnerableDebian
cpe:2.3:a:qt:qt:*:*:*:*:*:*:*:*5.7 to before 5.15.17; 6.0.0 to before 6.2.11; 6.3.0 to before 6.5.4; 6.6.0 to before 6.6.2Vulnerableqt
  • cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* Versions 10.0 Vulnerable ·Debian
  • cpe:2.3:a:qt:qt:*:*:*:*:*:*:*:* Versions 5.7 to before 5.15.17; 6.0.0 to before 6.2.11; 6.3.0 to before 6.5.4; 6.6.0 to before 6.6.2 Vulnerable ·qt

Remediation

Red Hat 2 advisories

  • RHSA-2024:3056 Released 2024-05-22 · Red Hat rating Moderate
    qt5-qtbase security update
    • Red Hat Enterprise Linux AppStream (v. 8) qt5-qtbase-5.15.3-7.el8, qt5-qtbase-common-5.15.3-7.el8, qt5-qtbase-devel-5.15.3-7.el8 +6
    • Red Hat Enterprise Linux CRB (v. 8) qt5-qtbase-static-5.15.3-7.el8
  • RHSA-2024:2276 Released 2024-04-30 · Red Hat rating Moderate
    qt5-qtbase security update
    • Red Hat Enterprise Linux AppStream (v. 9) qt5-qtbase-5.15.9-9.el9, qt5-qtbase-common-5.15.9-9.el9, qt5-qtbase-devel-5.15.9-9.el9 +6
    • Red Hat Enterprise Linux CRB (v. 9) qt5-qtbase-static-5.15.9-9.el9

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 6AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 7AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux AppStream (v. 8)Fixed RHSA-2024:3056
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2024:2276
Red Hat Enterprise Linux CRB (v. 8)Fixed RHSA-2024:3056
Red Hat Enterprise Linux CRB (v. 9)Fixed RHSA-2024:2276

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-51714
  2. 2026-10-03 Alias added: GHSA-4fvr-x23f-jwc4
  3. 2026-10-08 CISA SSVC decision points changed

References

Patch 2

Advisory 1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences