CVE-2021-39116

Name: CVE-2021-39116
Creator: NVD / NIST
Published: 2021-09-08T00:15:07.68+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 1.03%

Last modified Jun 17, 2026

CVE-2021-39116 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. Affected versions of Atlassian Jira Server and Data Center allow remote attackers to impact the application's availability via a Denial of Service (DoS) vulnerability in the GIF Image Reader component. The affected versions are before version 8.13.14, and from version 8.14.0 before 8.19.0.. EPSS estimates a 1.03% chance of exploitation in the next 30 days.

Description

Affected versions of Atlassian Jira Server and Data Center allow remote attackers to impact the application's availability via a Denial of Service (DoS) vulnerability in the GIF Image Reader component. The affected versions are before version 8.13.14, and from version 8.14.0 before 8.19.0.

Metrics

CVSS 3.1

5.5/10

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

EPSS Probability

1.03%

59.4th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Atlassian	Jira Data Center	< 8.13.14
Atlassian	Jira Data Center	>= 8.14.0, < 8.19.0
Atlassian	Jira Server	< 8.13.14
Atlassian	Jira Server	>= 8.14.0, < 8.19.0

References

https://jira.atlassian.com/browse/JRASERVER-72738Issue Tracking, Patch, Vendor Advisory
https://jira.atlassian.com/browse/JRASERVER-72738Issue Tracking, Patch, Vendor Advisory

Timeline

Published: Sep 8, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-39116?

How severe is CVE-2021-39116?

CVE-2021-39116 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 1.03% probability of exploitation in the next 30 days.

How do I fix CVE-2021-39116?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-39116?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST