CVE-2022-40983
CVSS v3
8.8
HIGH
EPSS Score
1.1 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
An integer overflow vulnerability exists in the QML QtScript Reflect API of Qt Project Qt 6.3.2. A specially-crafted javascript code can trigger an integer overflow during memory allocation, which can lead to arbitrary code execution. Target application would need to access a malicious web page to trigger this vulnerability.
Technical details
- Published
- 2023-01-12
Frequently asked questions
What is CVE-2022-40983?
An integer overflow vulnerability exists in the QML QtScript Reflect API of Qt Project Qt 6.3.2. A specially-crafted javascript code can trigger an integer overflow during memory allocation, which can lead to arbitrary code execution. Target application would need to access a malicious web page to trigger this vulnerability.
Is CVE-2022-40983 actively exploited?
Active exploitation of CVE-2022-40983 has not been confirmed. Its EPSS score was 1.1% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2022-40983?
CVE-2022-40983 has a CVSS v3 base score of 8.8 (HIGH severity).
Is CVE-2022-40983 affecting your environment?
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