CVE-2025-64734 – Tyco T21 Reader Resource Exhaustion Denial of Service

CVE ID : CVE-2025-64734

Published : Nov. 18, 2025, 4:15 a.m. | 49 minutes ago

Description : Missing Release of Resource after Effective Lifetime (CWE-772) in the T21 Reader allows an attacker with physical access to the Reader to perform a denial-of-service attack against that specific reader, preventing cardholders from badging for entry.

This issue affects Command Centre Server:

9.30 prior to vCR9.30.251028a (distributed in 9.30.2881 (MR3)), 9.20 prior to vCR9.20.251028a (distributed in 9.20.3265 (MR5)), 9.10 prior to vCR9.10.251028a (distributed in 9.10.4135 (MR8)),  all versions of 9.00 and prior.

Severity: 2.4 | LOW

Visit the link for more details, such as CVSS details, affected products, timeline, and more…