How severe is CVE-2021-37116?

CVE-2021-37116 has a CVSS 3.x base score of 9.1, rated critical 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 high.

Is CVE-2021-37116 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (50th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-37116?

CVE-2021-37116 affects Huawei Harmonyos. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-37116?

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

When was CVE-2021-37116 published?

CVE-2021-37116 was published on 2022-01-03 and last updated on 2026-06-17.

CVE-2021-37116

CVE-2021-37116 is a critical-severity vulnerability in Huawei Harmonyos with a CVSS 3.x base score of 9.1. 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-20.

Key facts

Severity: Critical (CVSS 3.x base score 9.1)
CVSS v2: 6.4
EPSS exploit prediction: 1% (50th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Huawei Harmonyos
Published: 2022-01-03
Last modified: 2026-06-17

Description

PCManager has a Weaknesses Introduced During Design vulnerability .Successful exploitation of this vulnerability may cause that the PIN of the subscriber is changed.

Frequently asked questions

What is CVE-2021-37116?: PCManager has a Weaknesses Introduced During Design vulnerability .Successful exploitation of this vulnerability may cause that the PIN of the subscriber is changed.
How severe is CVE-2021-37116?: CVE-2021-37116 has a CVSS 3.x base score of 9.1, rated critical 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 high.
Is CVE-2021-37116 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (50th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-37116?: CVE-2021-37116 affects Huawei Harmonyos. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-37116?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2021-37116 published?: CVE-2021-37116 was published on 2022-01-03 and last updated on 2026-06-17.

References

https://device.harmonyos.com/en/docs/security/update/security-bulletins-202110-0000001162998526

Affected products (1)

cpe:2.3:o:huawei:harmonyos:*:*:*:*:*:*:*:*

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