PT-2021-14735 · Unknown · Zxr10 8900E

Published 2021-02-26 · Updated 2021-03-04 · CVE-2021-21724

Positive Technologies (AI Summary)

CVSS v3.1

4.4

Medium

Base vector

AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions ZXR10 8900E versions up to V3.03.20R2B30P1

Description A memory leak issue exists due to the product's improper handling of memory release in certain scenarios. A local attacker with device permissions can repeatedly attenuate the optical signal to cause memory leak and abnormal service.

Recommendations For versions up to V3.03.20R2B30P1, update to a version later than V3.03.20R2B30P1 to resolve the issue. As a temporary workaround, consider restricting device permissions to minimize the risk of exploitation.

Fix

Memory Leak

Weakness Enumeration

CWE-401

Related Identifiers

CVE-2021-21724

Affected Products

Zxr10 8900E

References · 4

• https://osv.dev/vulnerability/CVE-2021-21724 · Vendor Advisory
• http://support.zte.com.cn/support/news/LoopholeInfoDetail.aspx?newsId=1014584 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-21724 · Security Note
• https://t.me/cibsecurity/24198 · Telegram Post