How severe is CVE-2021-22307?

CVE-2021-22307 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2021-22307 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-22307?

CVE-2021-22307 affects Huawei Mate 30 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-22307?

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

When was CVE-2021-22307 published?

CVE-2021-22307 was published on 2021-02-06 and last updated on 2026-06-17.

CVE-2021-22307

CVE-2021-22307 is a medium-severity vulnerability in Huawei Mate 30 Firmware with a CVSS 3.x base score of 5.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
CVSS v2: 2.1
EPSS exploit prediction: 0% (10th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Huawei Mate 30 Firmware
Published: 2021-02-06
Last modified: 2026-06-17

Description

There is a weak algorithm vulnerability in Mate 3010.0.0.203(C00E201R7P2). The protection is insufficient for the modules that should be protected. Local attackers can exploit this vulnerability to affect the integrity of certain module.

Frequently asked questions

What is CVE-2021-22307?: There is a weak algorithm vulnerability in Mate 3010.0.0.203(C00E201R7P2). The protection is insufficient for the modules that should be protected. Local attackers can exploit this vulnerability to affect the integrity of certain module.
How severe is CVE-2021-22307?: CVE-2021-22307 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2021-22307 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-22307?: CVE-2021-22307 affects Huawei Mate 30 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-22307?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-22307 published?: CVE-2021-22307 was published on 2021-02-06 and last updated on 2026-06-17.

References

https://www.huawei.com/en/psirt/security-advisories/huawei-sa-20210127-06-smartphone-en

Affected products (1)

cpe:2.3:o:huawei:mate_30_firmware:10.0.0.203\(c00e201r7p2\):*:*:*:*:*:*:*

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