What’s Vulnerable › Vulnerabilities

CVE-2023-38197

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-07-13 · updated 2026-06-17
• Weakness: CWE-835

Description

An issue was discovered in Qt before 5.15.15, 6.x before 6.2.10, and 6.3.x through 6.5.x before 6.5.3. There are infinite loops in recursive entity expansion.

Affected products

• Qt: before 5.15.15; from 6.0.0 before 6.2.10; from 6.3.0 before 6.5.3 — fixed in 5.15.15, 6.2.10, 6.5.3

How to fix

Upgrade to a fixed version: Qt 5.15.15, 6.2.10, 6.5.3. Check the vendor advisory for mitigations.

References

• https://codereview.qt-project.org/c/qt/qtbase/+/488960
• https://lists.debian.org/debian-lts-announce/2023/08/msg00028.html
• https://lists.debian.org/debian-lts-announce/2024/04/msg00027.html
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/F5C3NYVJ73ITE6HUOVVHBUAGORVEJRHO/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XEGQ6DFTL2BEJMHCD5FJGI6XLWQI7UEA/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XFZORZYCMUZZFIOEZICJ7VH2BZIGY3HV/
• https://codereview.qt-project.org/c/qt/qtbase/+/488960
• https://lists.debian.org/debian-lts-announce/2023/08/msg00028.html
• https://lists.debian.org/debian-lts-announce/2024/04/msg00027.html
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/F5C3NYVJ73ITE6HUOVVHBUAGORVEJRHO/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XEGQ6DFTL2BEJMHCD5FJGI6XLWQI7UEA/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XFZORZYCMUZZFIOEZICJ7VH2BZIGY3HV/

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