How severe is CVE-2021-21750?

CVE-2021-21750 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-21750 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-21750?

CVE-2021-21750 affects Zte Zxin10 Cms. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-21750?

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-2021-21750 published?

CVE-2021-21750 was published on 2021-12-27 and last updated on 2026-06-17.

CVE-2021-21750

CVE-2021-21750 is a high-severity vulnerability in Zte Zxin10 Cms with a CVSS 3.x base score of 7.8. 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-269.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 4.6
EPSS exploit prediction: 0% (24th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-269
Affected product: Zte Zxin10 Cms
Published: 2021-12-27
Last modified: 2026-06-17

Description

ZTE BigVideo Analysis product has a privilege escalation vulnerability. Due to improper management of the timed task modification privilege, an attacker with ordinary user permissions could exploit this vulnerability to gain unauthorized access.

Frequently asked questions

What is CVE-2021-21750?: ZTE BigVideo Analysis product has a privilege escalation vulnerability. Due to improper management of the timed task modification privilege, an attacker with ordinary user permissions could exploit this vulnerability to gain unauthorized access.
How severe is CVE-2021-21750?: CVE-2021-21750 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-21750 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-21750?: CVE-2021-21750 affects Zte Zxin10 Cms. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-21750?: 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-2021-21750 published?: CVE-2021-21750 was published on 2021-12-27 and last updated on 2026-06-17.

References

https://support.zte.com.cn/support/news/LoopholeInfoDetail.aspx?newsId=1021884

Affected products (1)

cpe:2.3:a:zte:zxin10_cms:*:*:*:*:*:*:*:*

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