How severe is CVE-2021-21732?

CVE-2021-21732 has a CVSS 3.x base score of 7.5, rated high 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 none.

Is CVE-2021-21732 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-21732?

CVE-2021-21732 affects Zte Axon 11 5g Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-21732?

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

When was CVE-2021-21732 published?

CVE-2021-21732 was published on 2021-05-19 and last updated on 2026-06-17.

CVE-2021-21732

CVE-2021-21732 is a high-severity vulnerability in Zte Axon 11 5g Firmware with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 1% (59th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Zte Axon 11 5g Firmware
Published: 2021-05-19
Last modified: 2026-06-17

Description

A mobile phone of ZTE is impacted by improper access control vulnerability. Due to improper permission settings, third-party applications can read some files in the proc file system without authorization. Attackers could exploit this vulnerability to obtain sensitive information. This affects Axon 11 5G ZTE/CN_P725A12/P725A12:10/QKQ1.200816.002/20201116.175317:user/release-keys.

Frequently asked questions

What is CVE-2021-21732?: A mobile phone of ZTE is impacted by improper access control vulnerability. Due to improper permission settings, third-party applications can read some files in the proc file system without authorization. Attackers could exploit this vulnerability to obtain sensitive information. This affects Axon 11 5G ZTE/CN_P725A12/P725A12:10/QKQ1.200816.002/20201116.175317:user/release-keys.
How severe is CVE-2021-21732?: CVE-2021-21732 has a CVSS 3.x base score of 7.5, rated high 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 none.
Is CVE-2021-21732 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-21732?: CVE-2021-21732 affects Zte Axon 11 5g Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-21732?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2021-21732 published?: CVE-2021-21732 was published on 2021-05-19 and last updated on 2026-06-17.

References

https://support.zte.com.cn/support/news/LoopholeInfoDetail.aspx?newsId=1015064

Affected products (1)

cpe:2.3:o:zte:axon_11_5g_firmware:*:*:*:*:*:*:*:*