What is CVE-2021-21723?

CVE-2021-21723 is a high-severity vulnerability in ZTE Zxr10 9904, classified under Missing Release of Memory after Effective Lifetime. CVSS score: 7.5/10. Published 2021-01-26.

How severe is CVE-2021-21723?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in ZTE Zxr10 9904

CVE-2021-21723

Some ZTE products have a DoS vulnerability. Due to the improper handling of memory release in some specific scenarios, a remote attacker can trigger the vulnerability by performing a series of operations, resulting in memory leak, which may eventually lead to device denial of service. This affects: ZXR10 9904, ZXR10 9908, ZXR10 9916, ZXR10 9904-S, ZXR10 9908-S; all versions up to V1.01.10.B12.

EPSS: 0.012 (64.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

CWE-401 — Missing Release of Memory after Effective Lifetime

References

psirt@zte.com.cn (x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2021-21723?: CVE-2021-21723 is a high-severity vulnerability in ZTE Zxr10 9904, classified under Missing Release of Memory after Effective Lifetime. CVSS score: 7.5/10. Published 2021-01-26.
How severe is CVE-2021-21723?: High severity. CVSS v3 base score is 7.5 out of 10.