Critical severity · published Apr 27, 2020
CVE-2020-12267
setMarkdown in Qt before 5.14.2 has a use-after-free related to QTextMarkdownImporter::insertBlock
9.8
CVSS
2.4%
EPSS
No
On KEV
Description
setMarkdown in Qt before 5.14.2 has a use-after-free related to QTextMarkdownImporter::insertBlock.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.4% · higher than 84% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
QT
QT · QT
5.14.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-12267
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-12267
Exploit
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=20450
Patch
https://codereview.qt-project.org/c/qt/qtbase/+/291706
Third Party Advisory
https://security.gentoo.org/glsa/202007-38
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