Security readout for executives and security teams
Plain-English summary
This CVE is a remote denial-of-service issue in Atlassian Jira Server and Data Center. An attacker could affect Jira availability through the GIF Image Reader component. The sources do not provide CVSS, exploit details, or evidence of active exploitation.
Executive priority
Treat as a reliability risk to a core collaboration platform. Prioritize patch verification, especially for externally reachable Jira deployments, but do not assume active exploitation from the supplied evidence.
Technical view
CVE-2021-39116 affects Jira Server and Jira Data Center versions before 8.13.14, and 8.14.0 before 8.19.0. The flaw is in the GIF Image Reader component and allows remote attackers to impact application availability. Public source detail is limited.
Likely exposure
Organizations running Jira Server or Jira Data Center in the affected version ranges are exposed, especially where remote users can submit or trigger image processing. Exposure should be verified against actual deployed versions.
Exploitation context
The CVE record describes remote availability impact but provides no public exploit mechanics. It is not listed as KEV in the supplied bundle, so active exploitation is not confirmed by these sources.
Researcher notes
Public details are sparse: no CVSS vector, CWE, proof-of-concept status, or exploit telemetry is provided. Analysis should stay focused on version exposure, GIF Image Reader availability impact, and Atlassian’s advisory trail.
Mitigation direction
- Upgrade Jira Server/Data Center outside the affected version ranges.
- Review Atlassian JRASERVER-72738 for vendor-specific remediation guidance.
- Prioritize internet-facing or business-critical Jira instances first.
- Limit untrusted access to Jira where operationally feasible until remediated.
Validation and detection
- Inventory all Jira Server and Data Center versions.
- Confirm no instance is before 8.13.14 or 8.14.0 before 8.19.0.
- Review Atlassian JRASERVER-72738 for affected-version confirmation.
- Check monitoring for unexplained Jira availability degradation.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CVE-2021-39116 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://jira.atlassian.com/browse/JRASERVER-72738CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.