How severe is CVE-2021-33649?

CVE-2021-33649 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2021-33649 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-33649?

CVE-2021-33649 primarily affects Mindspore. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-33649?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2021-33649 published?

CVE-2021-33649 was published on 2022-06-27 and last updated on 2026-06-17.

CVE-2021-33649

CVE-2021-33649 is a high-severity vulnerability in Mindspore with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-125.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 1% (54th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-125
Affected product: Mindspore
Published: 2022-06-27
Last modified: 2026-06-17

Description

When performing the inference shape operation of the Transpose operator, if the value in the perm element is greater than or equal to the size of the input_shape, it will access data outside of bounds of input_shape which allocated from heap buffers.

Frequently asked questions

What is CVE-2021-33649?: When performing the inference shape operation of the Transpose operator, if the value in the perm element is greater than or equal to the size of the input_shape, it will access data outside of bounds of input_shape which allocated from heap buffers.
How severe is CVE-2021-33649?: CVE-2021-33649 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2021-33649 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-33649?: CVE-2021-33649 primarily affects Mindspore. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-33649?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2021-33649 published?: CVE-2021-33649 was published on 2022-06-27 and last updated on 2026-06-17.

References

https://gitee.com/mindspore/community/blob/master/security/security_advisory_list/mssa-2021-006_en.md

Affected products (2)

cpe:2.3:a:mindspore:mindspore:*:*:*:*:*:openeuler:*:*
cpe:2.3:a:mindspore:mindspore:0.7.0:beta:*:*:*:openeuler:*:*

More vulnerabilities in Mindspore

CVE-2021-33654 — High (CVSS 7.5): When performing the initialization operation of the Split operator, if a dimension in the input shape is 0, it will…
CVE-2021-33653 — High (CVSS 7.5): When performing the derivation shape operation of the SpaceToBatch operator, if there is a value of 0 in the parameter…
CVE-2021-33652 — High (CVSS 7.5): When the Reduce operator run operation is executed, if there is a value of 0 in the parameter axis_sizes element, it…
CVE-2021-33651 — High (CVSS 7.5): When performing the analytical operation of the DepthwiseConv2D operator, if the attribute depth_multiplier is 0, it…
CVE-2021-33650 — High (CVSS 7.5): When performing the inference shape operation of the SparseToDense operator, if the number of inputs is less than…
CVE-2021-33648 — High (CVSS 7.5): When performing the inference shape operation of Affine, Concat, MatMul, ArgMinMax, EmbeddingLookup, and Gather…

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CVE-2021-21777 — Critical (CVSS 10.0): An information disclosure vulnerability exists in the Ethernet/IP UDP handler functionality of EIP Stack Group OpENer…
CVE-2017-14451 — Critical (CVSS 10.0): An exploitable out-of-bounds read vulnerability exists in libevm (Ethereum Virtual Machine) of CPP-Ethereum. A…
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