Medium severity · published Jul 4, 2024
CVE-2024-39936
An issue was discovered in HTTP2 in Qt before 5.15.18, 6.x before 6.2.13, 6.3.x through 6.5.x before 6.5.7, and 6.6.x through 6.7.x before 6.7.3
5.9
CVSS
0.5%
EPSS
No
On KEV
Description
An issue was discovered in HTTP2 in Qt before 5.15.18, 6.x before 6.2.13, 6.3.x through 6.5.x before 6.5.7, and 6.6.x through 6.7.x before 6.7.3. Code to make security-relevant decisions about an established connection may execute too early, because the encrypted() signal has not yet been emitted and processed..
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 42% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
QT
QT · QT
before 5.15.18; 6.0.0 before 6.2.13; 6.3.0 before 6.5.7; 6.6.0 before 6.7.3 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-39936
CVE.org
https://www.cve.org/CVERecord?id=CVE-2024-39936
Vendor Advisory
https://codereview.qt-project.org/c/qt/qtbase/+/571601
lists.debian.org
https://lists.debian.org/debian-lts-announce/2025/11/msg00031.html
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