How severe is CVE-2021-36994?

CVE-2021-36994 has a CVSS 3.x base score of 3.7, rated low severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2021-36994 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (26th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-36994?

CVE-2021-36994 primarily affects Huawei Emui. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-36994?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-36994 published?

CVE-2021-36994 was published on 2021-10-28 and last updated on 2026-06-17.

CVE-2021-36994

CVE-2021-36994 is a low-severity vulnerability in Huawei Emui with a CVSS 3.x base score of 3.7. 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-362.

Key facts

Severity: Low (CVSS 3.x base score 3.7)
CVSS v2: 4.3
EPSS exploit prediction: 0% (26th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-362
Affected product: Huawei Emui
Published: 2021-10-28
Last modified: 2026-06-17

Description

There is a issue that trustlist strings being repeatedly inserted into the linked list in Huawei Smartphone due to race conditions. Successful exploitation of this vulnerability can cause exceptions when managing the system trustlist.

Frequently asked questions

What is CVE-2021-36994?: There is a issue that trustlist strings being repeatedly inserted into the linked list in Huawei Smartphone due to race conditions. Successful exploitation of this vulnerability can cause exceptions when managing the system trustlist.
How severe is CVE-2021-36994?: CVE-2021-36994 has a CVSS 3.x base score of 3.7, rated low severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2021-36994 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (26th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-36994?: CVE-2021-36994 primarily affects Huawei Emui. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-36994?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-36994 published?: CVE-2021-36994 was published on 2021-10-28 and last updated on 2026-06-17.

References

https://consumer.huawei.com/en/support/bulletin/2021/7/

Affected products (4)

cpe:2.3:o:huawei:emui:10.1.1:*:*:*:*:*:*:*
cpe:2.3:o:huawei:emui:11.0.0:*:*:*:*:*:*:*
cpe:2.3:o:huawei:magic_ui:3.1.1:*:*:*:*:*:*:*
cpe:2.3:o:huawei:magic_ui:4.0.0:*:*:*:*:*:*:*

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