Security readout for executives and security teams
Plain-English summary
RubyMine before 2021.1.1 could run code from an untrusted project without asking the user. Business risk is compromise of developer workstations when opening malicious or unknown projects. The record does not provide CVSS severity.
Executive priority
Handle as a developer-workstation risk. It is not KEV-confirmed, but code execution in an IDE can affect sensitive source code and credentials.
Technical view
CVE-2021-37543 describes unintended code execution in JetBrains RubyMine versions before 2021.1.1 when handling untrusted projects. Public details are sparse: no CWE, CVSS vector, exploit description, or affected CPEs are provided in the source bundle.
Likely exposure
Exposure is most likely on developer endpoints running JetBrains RubyMine before 2021.1.1, especially where users open third-party, downloaded, or untrusted project directories.
Exploitation context
The source bundle does not show CISA KEV listing or cited evidence of active exploitation. Treat exploitation status as unknown, not confirmed.
Researcher notes
The public record gives minimal technical detail. Validation should focus on version exposure and user workflow risk, not exploit reproduction. Avoid assuming impact beyond untrusted-project code execution.
Mitigation direction
- Upgrade RubyMine to 2021.1.1 or later.
- Review JetBrains security bulletin for vendor-specific guidance.
- Restrict opening untrusted project directories on vulnerable builds.
- Prioritize developer machines with access to source code, credentials, or production systems.
Validation and detection
- Inventory installed RubyMine versions across developer endpoints.
- Flag any RubyMine installation older than 2021.1.1.
- Confirm endpoint controls limit execution from untrusted project workspaces.
- Check security tooling for alerts tied to RubyMine-launched child processes.
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.
Execution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2021-37543 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/blog/2021/08/05/jetbrains-security-bulletin-q2-2021/CVE 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.