Security readout for executives and security teams
Plain-English summary
MindSpore had a bounds-checking flaw in the Transpose operator’s shape inference. A malformed permutation value could make the software read past a heap buffer. The public sources do not provide CVSS, business impact, or active exploitation evidence, so urgency depends on whether affected MindSpore versions are used in production or research pipelines.
Executive priority
Prioritize as a targeted dependency remediation if MindSpore is present. The absence of CVSS and exploitation evidence lowers certainty, not necessarily risk. Focus first on systems processing third-party or externally influenced model artifacts.
Technical view
CVE-2021-33649 is a CWE-125 out-of-bounds read in MindSpore versions from 0.7.0-beta before 1.3.0. During Transpose shape inference, a perm element greater than or equal to input_shape size can read outside the allocated heap buffer. Sources do not state exploitability beyond this condition.
Likely exposure
Exposure is limited to deployments using openEuler:mindspore versions >= 0.7.0-beta and < 1.3.0. Risk is more relevant where model graphs or operator definitions may come from less-trusted sources, but the public bundle does not define the attack vector.
Exploitation context
The source bundle marks KEV as false and provides no cited evidence of active exploitation, public exploit code, or observed attacks. Treat exploit status as unknown, not confirmed exploited.
Researcher notes
The key condition is an unchecked perm index during Transpose shape inference, causing heap out-of-bounds read of input_shape. Public data does not specify crash behavior, disclosure impact, reachability, privileges, or remote attack requirements. Avoid assuming more than CWE-125 without vendor details.
Mitigation direction
- Inventory MindSpore versions across production, CI, research, and container images.
- Move affected MindSpore installations outside the >=0.7.0-beta and <1.3.0 range.
- Check the MindSpore security advisory for vendor-confirmed fixed versions or workarounds.
- Restrict use of untrusted model artifacts until affected systems are remediated.
- Prioritize remediation where MindSpore handles externally supplied models or workloads.
Validation and detection
- Confirm installed MindSpore versions are not within the affected range.
- Review dependency manifests and container layers for bundled MindSpore copies.
- Identify workflows that run Transpose shape inference on imported models.
- Verify remediation against the vendor advisory before closing tickets.
- Record systems where exposure cannot be determined from available evidence.
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-125: 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-2021-33649 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-2021-006_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.
Out-of-bounds Read
Out-of-bounds Read represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.