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CVE-2021-39123

HIGH
7.5
CVSS Score
Published: September 14, 2021 at 04:30 AM UTC
Updated: June 17, 2026 at 04:03 AM UTC
4 products affected across 1 vendorJiraData CenterJira Server

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Severity
HIGH7.5
Exploit prediction
EPSS 2%
SSVC
No known exploit

Description

Affected versions of Atlassian Jira Server and Data Center allow unauthenticated remote attackers to impact the application's availability via a Denial of Service (DoS) vulnerability in the /rest/gadget/1.0/createdVsResolved/generate endpoint. The affected versions are before version 8.16.0.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Data Center· Atlassianatlassian-app
95%
v < 8.16.0
Affected range stops below 8.16.0, so it looks safe — our inference, not a vendor statement
Jira· Atlassianatlassian-app
95%
v < 8.16.0
Affected range stops below 8.16.0, so it looks safe — our inference, not a vendor statement
Jira Data Center· Atlassianatlassian-app
60%
v < 8.16.0
Affected range stops below 8.16.0, so it looks safe — our inference, not a vendor statement
Jira Server· Atlassianatlassian-app
60%
v < 8.16.0
Affected range stops below 8.16.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

x_refsource_MISCThird Party Advisory
Source: [email protected]
https://jira.atlassian.com/browse/JRASERVER-72237

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGHCISA-ADP
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-noinfo

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