5.5

CVE-2021-39116: atlassian jira_data_center

Modified
Published 08-09-2021Last modified 10-10-2024

Vulnerability summary

CVE-2021-39116 is a medium (CVSS 5.5) vulnerability in atlassian jira_data_center. EPSS estimates a 1.46% chance of exploitation in the next 30 days, higher than 73.5% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
5.5/10
010
Medium · v3.1 (NVD)
EPSS score
1.46%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Timeline

  1. 08-09-2021
    PublishedVulnerability first disclosed.
  2. 10-10-2024
    Last modifiedVulnerability information updated.

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.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

1.46%

Chance of exploitation in the next 30 days

Percentile

74%

Versus all other CVEs

30-day change

No change 0.00 pp

From 1.46% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Version check

Known conditions: local access, no authentication, user interaction (CVSS vector). Other conditions: not stated in public data.

Atlassian2 products
  • jira_data_center≥ unspecified, < 8.13.14 | ≥ 8.14.0, < unspecified | ≥ unspecified, < 8.19.0 | < 8.13.14 | ≥ 8.14.0, < 8.19.0
  • jira_server≥ unspecified, < 8.13.14 | ≥ 8.14.0, < unspecified | ≥ unspecified, < 8.19.0 | < 8.13.14 | ≥ 8.14.0, < 8.19.0

1 vendor · 2 products

References

1 links