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7.5

There is an incorrect buffer size calculation vulnerability in the video framework.Successful exploitation of this vulnerability may affect availability.

CVE-2021-40052 · published 4 years ago
Summary

There is an incorrect buffer size calculation vulnerability in the video framework.Successful exploitation of this vulnerability may affect availability.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
huawei harmonyos 2.0
cpe:2.3:o:huawei:harmonyos:2.0:*:*:*:*:*:*:*
huawei emui 11.0.0
11.0.1
cpe:2.3:o:huawei:emui:11.0.0:*:*:*:*:*:*:*
huawei magic_ui 4.0.0
cpe:2.3:o:huawei:magic_ui:4.0.0:*:*:*:*:*:*:*
Original advisory text
There is an incorrect buffer size calculation vulnerability in the video framework.Successful exploitation of this vulnerability may affect availability.
There is an incorrect buffer size calculation vulnerability in the video framework.Successful exploitation of this vulnerability may affect availability.
References
Fix within
Internet-facing 14 days
Internal 60 days
  • Not known to be exploited
  • Can be exploited automatically (estimated)
  • Gives an attacker partial control (estimated)
Severity
7.5 High
Exploitation
<1% chance of attack within 30 days
Type
CWE-131Incorrect Calculation of Buffer Size
Timeline
Published10 Mar 2022
Updated4 Nov 2026
First seen29 Sep 2026
Sources
CVE-2021-40052 · NVD
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