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
0.001 Low
EPSS
Percentile
47.2%
Buffer leak on incoming WebSocket PONG message(s) in Undertow before 2.0.40 and 2.2.10 can lead to memory exhaustion and allow a denial of service.
access.redhat.com/security/cve/CVE-2021-3690
access.redhat.com/security/cve/cve-2021-3690#cve-cvss-v3
bugzilla.redhat.com/show_bug.cgi?id=1991299
github.com/undertow-io/undertow
github.com/undertow-io/undertow/commit/c7e84a0b7efced38506d7d1dfea5902366973877
issues.redhat.com/browse/UNDERTOW-1935
nvd.nist.gov/vuln/detail/CVE-2021-3690
www.mend.io/vulnerability-database/CVE-2021-3690