Back to Database
Status published
High
CVE-2018-21035
In Qt through 5.14.1, the WebSocket implementation accepts up to...
Vulnerability Description
In Qt through 5.14.1, the WebSocket implementation accepts up to 2GB for frames and 2GB for messages. Smaller limits cannot be configured. This makes it easier for attackers to cause a denial of service (memory consumption).
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
THREAT MONITOR
Am I Vulnerable?
Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2018-21035
Credits & Attribution
No credits recorded in the NVD database.
References
More from qt
View All →CVE-2022-25634
Qt through 5.15.8 and 6.x through 6.2.3 can load system...
High
7.5
CVE-2022-25255
In Qt 5.9.x through 5.15.x before 5.15.9 and 6.x before...
High
7.8
CVE-2021-45930
Qt SVG in Qt 5.0.0 through 5.15.2 and 6.0.0 through...
Medium
5.5
CVE-2021-38593
Qt 5.x before 5.15.6 and 6.x through 6.1.2 has an...
High
7.5
CVE-2021-28025
Integer Overflow vulnerability in qsvghandler.cpp in Qt qtsvg versions 5.15.1,...
Medium
5.5
Affected Vendor
Affected Software
qt
Vulnerable Versions:
0
Timeline
Official Publish:
February 28th, 2020
Last Modified:
August 5th, 2024
Added to House:
July 20th, 2026
CVSS Vectors
V3:
CVSS:3.0/AC:L/AV:N/A:H/C:N/I:N/PR:N/S:C/UI:N
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.