How severe is CVE-2021-46883?

CVE-2021-46883 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 none, integrity none, and availability high.

Is CVE-2021-46883 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-46883?

CVE-2021-46883 primarily affects Huawei Emui. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-46883?

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-2021-46883 published?

CVE-2021-46883 was published on 2023-05-26 and last updated on 2026-06-17.

CVE-2021-46883

CVE-2021-46883 is a high-severity vulnerability in Huawei Emui 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-120.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 0% (35th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-120
Affected product: Huawei Emui
Published: 2023-05-26
Last modified: 2026-06-17

Description

The video framework has memory overwriting caused by addition overflow. Successful exploitation of this vulnerability may affect availability.

Frequently asked questions

What is CVE-2021-46883?: The video framework has memory overwriting caused by addition overflow. Successful exploitation of this vulnerability may affect availability.
How severe is CVE-2021-46883?: CVE-2021-46883 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 none, integrity none, and availability high.
Is CVE-2021-46883 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-46883?: CVE-2021-46883 primarily affects Huawei Emui. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-46883?: 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-2021-46883 published?: CVE-2021-46883 was published on 2023-05-26 and last updated on 2026-06-17.

References

https://consumer.huawei.com/en/support/bulletin/2023/5/

Affected products (5)

cpe:2.3:o:huawei:emui:10.1.0:*:*:*:*:*:*:*
cpe:2.3:o:huawei:emui:10.1.1:*:*:*:*:*:*:*
cpe:2.3:o:huawei:emui:11.0.0:*:*:*:*:*:*:*
cpe:2.3:o:huawei:emui:12.0.0:*:*:*:*:*:*:*
cpe:2.3:o:huawei:emui:12.0.1:*:*:*:*:*:*:*

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