How severe is CVE-2021-22399?

CVE-2021-22399 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 none, and availability high.

Is CVE-2021-22399 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (6th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-22399?

CVE-2021-22399 primarily affects Huawei P30 Firmware. In total, 9 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-22399?

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

When was CVE-2021-22399 published?

CVE-2021-22399 was published on 2021-07-13 and last updated on 2026-06-17.

CVE-2021-22399

CVE-2021-22399 is a medium-severity vulnerability in Huawei P30 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% (6th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Huawei P30 Firmware
Published: 2021-07-13
Last modified: 2026-06-17

Description

The Bluetooth function of some Huawei smartphones has a DoS vulnerability. Attackers can install third-party apps to send specific broadcasts, causing the Bluetooth module to crash. This vulnerability is successfully exploited to cause the Bluetooth function to become abnormal. Affected product versions include: HUAWEI P30 10.0.0.195(C432E22R2P5), 10.0.0.200(C00E85R2P11), 10.0.0.200(C461E6R3P1), 10.0.0.201(C10E7R5P1), 10.0.0.201(C185E4R7P1), 10.0.0.206(C605E19R1P3), 10.0.0.209(C636E6R3P4), 10.0.0.210(C635E3R2P4), and versions earlier than 10.1.0.165(C01E165R2P11).

Frequently asked questions

What is CVE-2021-22399?: The Bluetooth function of some Huawei smartphones has a DoS vulnerability. Attackers can install third-party apps to send specific broadcasts, causing the Bluetooth module to crash. This vulnerability is successfully exploited to cause the Bluetooth function to become abnormal. Affected product versions include: HUAWEI P30 10.0.0.195(C432E22R2P5), 10.0.0.200(C00E85R2P11), 10.0.0.200(C461E6R3P1), 10.0.0.201(C10E7R5P1), 10.0.0.201(C185E4R7P1), 10.0.0.206(C605E19R1P3), 10.0.0.209(C636E6R3P4), 10.0.0.210(C635E3R2P4), and versions earlier than 10.1.0.165(C01E165R2P11).
How severe is CVE-2021-22399?: CVE-2021-22399 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 none, and availability high.
Is CVE-2021-22399 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (6th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-22399?: CVE-2021-22399 primarily affects Huawei P30 Firmware. In total, 9 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-22399?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-22399 published?: CVE-2021-22399 was published on 2021-07-13 and last updated on 2026-06-17.

References

https://www.huawei.com/en/psirt/security-advisories/huawei-sa-20210707-03-dos-en

Affected products (9)

cpe:2.3:o:huawei:p30_firmware:10.0.0.195\(c432e22r2p5\):*:*:*:*:*:*:*
cpe:2.3:o:huawei:p30_firmware:10.0.0.200\(c00e85r2p11\):*:*:*:*:*:*:*
cpe:2.3:o:huawei:p30_firmware:10.0.0.200\(c461e6r3p1\):*:*:*:*:*:*:*
cpe:2.3:o:huawei:p30_firmware:10.0.0.201\(c10e7r5p1\):*:*:*:*:*:*:*
cpe:2.3:o:huawei:p30_firmware:10.0.0.201\(c185e4r7p1\):*:*:*:*:*:*:*
cpe:2.3:o:huawei:p30_firmware:10.0.0.206\(c605e19r1p3\):*:*:*:*:*:*:*
cpe:2.3:o:huawei:p30_firmware:10.0.0.209\(c636e6r3p4\):*:*:*:*:*:*:*
cpe:2.3:o:huawei:p30_firmware:10.0.0.210\(c635e3r2p4\):*:*:*:*:*:*:*
cpe:2.3:o:huawei:p30_firmware:*:*:*:*:*:*:*:*

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