Security readout for executives and security teams
Plain-English summary
CVE-2020-27622 is an information disclosure issue in JetBrains IntelliJ IDEA before 2020.2. The IDE's built-in web server could reveal the IDE version. The cited sources do not show code execution, data theft, or active exploitation.
Executive priority
Treat this as low urgency unless legacy IntelliJ IDEA installations are widespread or exposed in sensitive developer environments. Prioritize cleanup through normal endpoint hygiene and developer tooling updates.
Technical view
The issue affects IntelliJ IDEA versions before 2020.2 and concerns version disclosure through the built-in web server. No CVSS score, CWE, detailed attack prerequisites, or exploit indicators are provided in the source bundle.
Likely exposure
Exposure is most likely on developer workstations running IntelliJ IDEA before 2020.2, especially where the built-in web server is enabled or reachable. The source bundle does not define affected operating systems, configurations, or network conditions.
Exploitation context
CISA KEV is false in the provided data, and the cited sources do not state active exploitation. The disclosed impact is limited to IDE version exposure based on available evidence.
Researcher notes
The evidence is sparse: no CVSS, CWE, exploit detail, or configuration matrix is included. Do not expand scope beyond IntelliJ IDEA before 2020.2 without additional vendor evidence.
Mitigation direction
- Upgrade IntelliJ IDEA to version 2020.2 or later.
- Review the JetBrains Q3 2020 security bulletin for vendor guidance.
- Inventory developer machines for IntelliJ IDEA versions before 2020.2.
- Reduce exposure of the IDE built-in web server where operationally possible.
Validation and detection
- Confirm installed IntelliJ IDEA versions are 2020.2 or newer.
- Check endpoint inventory for older IntelliJ IDEA installations.
- Review IDE configuration for built-in web server exposure.
- Document any remaining legacy installations and compensating controls.
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-2020-27622 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://blog.jetbrains.com/CVE reference · x_refsource_MISC
- https://blog.jetbrains.com/2020/11/16/jetbrains-security-bulletin-q3-2020/CVE reference · x_refsource_CONFIRM
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.