Security readout for executives and security teams
Plain-English summary
CVE-2021-28210 is a firmware-code issue in TianoCore EDK II's DxeCore. The public record only says unlimited recursion exists; it does not state impact, affected versions, or a fixed release. Treat it as a firmware supply-chain exposure question until your OEM or firmware vendor confirms relevance.
Executive priority
Prioritize as an exposure clarification item, not an emergency response, unless a vendor confirms affected deployed firmware or operational impact.
Technical view
The CVE identifies CWE-674, uncontrolled recursion, in DxeCore within EDK II. Provided sources do not include CVSS, precise affected versions, trigger conditions, privilege requirements, or remediation details. Because EDK II is commonly used as a firmware foundation, exposure depends on downstream firmware builds.
Likely exposure
Organizations may be exposed if systems, appliances, or firmware images are built from affected TianoCore EDK II DxeCore code. The source bundle does not identify specific versions, OEM products, or platforms.
Exploitation context
The source bundle does not show CISA KEV listing, active exploitation, public exploit availability, or confirmed attack scenarios. Do not assume exploitation without vendor or threat-intelligence confirmation.
Researcher notes
Evidence is sparse: the CVE description is one sentence, severity is unknown, and versions are unspecified. Analysis should focus on provenance, downstream firmware builds, and vendor confirmation rather than assumed exploitability.
Mitigation direction
- Check TianoCore Bugzilla and vendor advisories for confirmed affected versions and fixes.
- Ask OEMs whether shipped firmware includes vulnerable EDK II DxeCore code.
- Apply vendor firmware updates after normal compatibility testing.
- Track this CVE in firmware SBOM and asset risk records.
Validation and detection
- Inventory systems and firmware images using TianoCore EDK II components.
- Compare firmware provenance against vendor statements for CVE-2021-28210.
- Review available firmware SBOMs for EDK II DxeCore lineage.
- Confirm remediation status through OEM firmware release notes.
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.
CWE-674: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2021-28210 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://bugzilla.tianocore.org/show_bug.cgi?id=1743CVE 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.
Uncontrolled Recursion
Uncontrolled Recursion represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.