Security readout for executives and security teams
Plain-English summary
CVE-2021-2297 is a confidentiality issue in Oracle VM VirtualBox Core before 6.1.20. It is not a remote drive-by risk: an attacker needs local access to the infrastructure and high privileges. If successful, they could read critical data accessible to VirtualBox, potentially affecting connected products or workloads.
Executive priority
Treat this as a targeted maintenance and exposure-reduction item, not an emergency incident based on the supplied evidence. Patch or retire pre-6.1.20 VirtualBox installations, prioritizing hosts with sensitive data access or broad privileged-user access.
Technical view
Oracle describes a difficult-to-exploit VirtualBox Core vulnerability affecting supported versions prior to 6.1.20. CVSS 3.1 is 5.3 with AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:N, meaning local, high-complexity, high-privilege exploitation with high confidentiality impact and no stated integrity or availability impact.
Likely exposure
Exposure is most likely on systems running Oracle VM VirtualBox before 6.1.20, especially developer workstations, lab systems, or infrastructure hosts where privileged users can log on. Systems without VirtualBox, or already updated to a fixed vendor-supported release, are not indicated as affected by the provided sources.
Exploitation context
The bundle does not show CISA KEV listing or other evidence of active exploitation. Exploitation requires high privileges and local infrastructure access, so urgency is lower than internet-facing flaws. Impact can still matter where VirtualBox can access sensitive VM, host, or shared data.
Researcher notes
The strongest source detail is the CVSS vector and Oracle description. Root cause, proof-of-concept status, and exact vulnerable code path are not provided in the bundle. Avoid assuming exploit availability or broader product impact beyond Oracle’s note that attacks may significantly impact additional products.
Mitigation direction
- Upgrade Oracle VM VirtualBox to 6.1.20 or a later vendor-supported fixed release.
- Apply Gentoo GLSA-202208-36 updates where VirtualBox is installed through Gentoo packages.
- Restrict privileged logon access to systems running VirtualBox.
- Review Oracle CPU April 2021 guidance for environment-specific patch instructions.
- Prioritize systems handling sensitive VM data or shared host directories.
Validation and detection
- Inventory systems with Oracle VM VirtualBox installed.
- Confirm installed VirtualBox versions are not prior to 6.1.20.
- Check Gentoo hosts for completion of GLSA-202208-36 remediation.
- Review privileged account access to VirtualBox hosts.
- Document any remaining unsupported or exception-based VirtualBox deployments.
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-2021-2297 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
- Medium
- CVSS
- 5.3 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:N
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 vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:N0.84Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
5.3MediumVector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://www.oracle.com/security-alerts/cpuapr2021.htmlCVE reference · x_refsource_MISC
- https://www.zerodayinitiative.com/advisories/ZDI-21-462/CVE reference · x_refsource_MISC
- GLSA-202208-36CVE reference · vendor-advisory, x_refsource_GENTOO
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.