7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.2 High
AI Score
Confidence
High
0.0004 Low
EPSS
Percentile
13.2%
A flaw was found in the Node.js WebSocket library (ws). A request with several headers exceeding the ‘server.maxHeadersCount’ threshold could be used to crash a ws server, leading to a denial of service.
The issue can be mitigated by reducing the maximum allowed length of the request headers using the --max-http-header-size=size or the maxHeaderSize options so that no more headers than the server.maxHeadersCount limit can be sent. The issue can be mitigated also by seting server.maxHeadersCount to 0.
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.2 High
AI Score
Confidence
High
0.0004 Low
EPSS
Percentile
13.2%