How severe is CVE-2021-22305?

CVE-2021-22305 has a CVSS 3.x base score of 3.3, rated low severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.

Is CVE-2021-22305 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-2021-22305?

CVE-2021-22305 affects Huawei Mate 30 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-22305?

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

When was CVE-2021-22305 published?

CVE-2021-22305 was published on 2021-02-06 and last updated on 2026-06-17.

CVE-2021-22305

CVE-2021-22305 is a low-severity vulnerability in Huawei Mate 30 Firmware with a CVSS 3.x base score of 3.3. 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: Low (CVSS 3.x base score 3.3)
CVSS v2: 2.1
EPSS exploit prediction: 0% (10th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-120
Affected product: Huawei Mate 30 Firmware
Published: 2021-02-06
Last modified: 2026-06-17

Description

There is a buffer overflow vulnerability in Mate 30 10.1.0.126(C00E125R5P3). A module does not verify the some input when dealing with messages. Attackers can exploit this vulnerability by sending malicious input through specific module. This could cause buffer overflow, compromising normal service.

Frequently asked questions

What is CVE-2021-22305?: There is a buffer overflow vulnerability in Mate 30 10.1.0.126(C00E125R5P3). A module does not verify the some input when dealing with messages. Attackers can exploit this vulnerability by sending malicious input through specific module. This could cause buffer overflow, compromising normal service.
How severe is CVE-2021-22305?: CVE-2021-22305 has a CVSS 3.x base score of 3.3, rated low severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.
Is CVE-2021-22305 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-2021-22305?: CVE-2021-22305 affects Huawei Mate 30 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-22305?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-22305 published?: CVE-2021-22305 was published on 2021-02-06 and last updated on 2026-06-17.

References

https://www.huawei.com/en/psirt/security-advisories/huawei-sa-20210127-04-smartphone-en

Affected products (1)

cpe:2.3:o:huawei:mate_30_firmware:10.1.0.126\(c00e125r5p3\):*:*:*:*:*:*:*

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