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CVE-2022-2764

19
FAUCET Score

CVE-2022-2764 is a denial-of-service vulnerability in Undertow, affecting NetApp and Red Hat products. The flaw allows a highly privileged attacker to cause a denial of service by exploiting how the server handles EJB invocations, specifically by waiting indefinitely for the LAST_CHUNK. With a CVSS score of 4.9 (Medium), this vulnerability has a low attack complexity but requires high privileges. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:redhat:integration_camel_k:-:*:*:*:*:*:*:*
7.0.0CPE matchmatch criteria
cpe:2.3:a:redhat:jboss_enterprise_application_platform:7.0.0:*:*:*:*:*:*:*
7.0.0CPE matchmatch criteria
cpe:2.3:a:redhat:jboss_fuse:7.0.0:*:*:*:*:*:*:*
7.0CPE matchmatch criteria
cpe:2.3:a:redhat:single_sign-on:7.0:*:*:*:*:*:*:*
>= 2.0.0, <= 2.2.19CPE matchmatch criteria
cpe:2.3:a:redhat:undertow:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

4.9MEDIUM

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.2
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.79%
Probability of exploitation in next 30 days
EPSS Percentile
52.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0079 is in the 54th percentile among its peer group of 3,565 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (14)

redhatpatch availablevia redhat_api
Product: RHEL-8 based Middleware ContainersFixed in: rh-sso-7/sso76-openshift-rhel8:7.6-20
View patch
redhatpatch availablevia redhat_api
Product: Red Hat JBoss Enterprise Application PlatformFixed in: io.undertow/undertow-core:2.2.20.SP1-redhat-00001
View patch
redhatpatch availablevia redhat_api
Product: Red Hat JBoss Enterprise Application Platform 7.4 for RHEL 8Fixed in: eap7-undertow-0:2.2.20-1.SP1_redhat_00001.1.el8eap
View patch
redhatpatch availablevia redhat_api
Product: Red Hat JBoss Enterprise Application Platform 7.4 for RHEL 9Fixed in: eap7-undertow-0:2.2.20-1.SP1_redhat_00001.1.el9eap
View patch
redhatpatch availablevia redhat_api
Product: Red Hat JBoss Enterprise Application Platform 7.4 on RHEL 7Fixed in: eap7-undertow-0:2.2.20-1.SP1_redhat_00001.1.el7eap
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Single Sign-On 7Fixed in: undertow
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Single Sign-On 7.6 for RHEL 7Fixed in: rh-sso7-keycloak-0:18.0.6-1.redhat_00001.1.el7sso
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Single Sign-On 7.6 for RHEL 8Fixed in: rh-sso7-keycloak-0:18.0.6-1.redhat_00001.1.el8sso
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Single Sign-On 7.6 for RHEL 9Fixed in: rh-sso7-keycloak-0:18.0.6-1.redhat_00001.1.el9sso
View patch
redhatvendor investigatingvia redhat_api
Product: Red Hat Integration Camel Quarkus 1Fixed in: undertow
redhatvendor investigatingvia redhat_api
Product: Red Hat Data Grid 8Fixed in: undertow
redhatvendor investigatingvia redhat_api
Product: Red Hat Fuse 7Fixed in: undertow
redhatvendor investigatingvia redhat_api
Product: Red Hat Integration Camel K 1Fixed in: undertow
redhatvendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2022-2764Low

Undertow: DoS can be achieved as Undertow server waits for the LAST_CHUNK forever for EJB invocations

Aug 11, 2022

References

bugzilla.redhat.com / show_bug.cgi
Issue TrackingVendor Advisory
security.netapp.com / advisory/ntap-20221014-0006
Third Party Advisory