What’s Vulnerable › Vulnerabilities

CVE-2020-12267

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2020-04-27 · updated 2026-06-17
• Weakness: CWE-416

Description

setMarkdown in Qt before 5.14.2 has a use-after-free related to QTextMarkdownImporter::insertBlock.

Affected products

• Qt: 5.14.1

References

• https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=20450
• https://codereview.qt-project.org/c/qt/qtbase/+/291706
• https://security.gentoo.org/glsa/202007-38
• https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=20450
• https://codereview.qt-project.org/c/qt/qtbase/+/291706
• https://security.gentoo.org/glsa/202007-38

Get alerted when CVE-2020-12267 or the next vulnerability affects your stack