Security readout for executives and security teams
Plain-English summary
MindSpore can crash during a DepthwiseConv2D analysis operation when a specific operator setting is zero. The known impact is a division-by-zero exception, so the business risk appears focused on availability or workflow disruption in affected ML environments.
Executive priority
Treat this as a targeted ML-platform availability issue. Prioritize remediation where MindSpore handles untrusted models or supports critical production workflows; otherwise handle through normal dependency maintenance.
Technical view
CVE-2021-33651 is a CWE-369 division-by-zero flaw in MindSpore DepthwiseConv2D analytical processing when depth_multiplier equals 0. The source bundle lists openEuler:mindspore versions >= 1.1.0 and < 1.3.0 as affected. No CVSS score is provided.
Likely exposure
Exposure is likely limited to environments running openEuler MindSpore 1.1.x to pre-1.3.0, especially where untrusted or externally supplied model definitions can reach DepthwiseConv2D analysis.
Exploitation context
The provided sources do not report active exploitation, public exploit use, or KEV listing. The available evidence supports a crash condition, not code execution or privilege escalation.
Researcher notes
Evidence is sparse: the bundle identifies the operator, trigger condition, CWE, and affected version range, but provides no CVSS vector, exploit status, or detailed remediation text beyond the advisory reference.
Mitigation direction
- Inventory MindSpore versions in ML build, training, and inference environments.
- Prioritize upgrades outside the affected >=1.1.0, <1.3.0 range.
- Review the MindSpore advisory before choosing the target fixed version.
- Restrict untrusted model definitions until affected systems are remediated.
- Add validation to reject zero depth_multiplier where locally configurable.
Validation and detection
- Confirm whether any deployed package is openEuler:mindspore >=1.1.0 and <1.3.0.
- Review model pipelines for DepthwiseConv2D use and externally supplied model definitions.
- Verify upgraded environments are outside the affected version range.
- Check logs for repeated DepthwiseConv2D analysis exceptions or unexplained ML job crashes.
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-369: 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-2021-33651 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://gitee.com/mindspore/community/blob/master/security/security_advisory_list/mssa-2021-004_en.mdCVE 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.
Divide By Zero
Divide By Zero represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.