Vulnerability in Gallagher T-Series Readers
CVE-2025-44003
Missing Release of Resource after Effective Lifetime (CWE-772) in the Gallagher T-Series Reader allows an attacker with physical access to the reader to perform a limited denial of service when 125 kHz Card Technology is enabled. This issue affects T-Series Readers: 9.20 prior to vCR9.20.250213a (distributed in 9.20.1827 (MR2)), 9.10 prior to vCR9.10.250213a (distributed in 9.10.2692(MR5)), 9.00 prior to vCR9.00.250619a (distributed in vEL9.00.3371 (MR7)), all versions of 8.90 and prior.
EPSS: 0.002 (7.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.
Affected products
- Gallagher T-series Readers — versions 0, 9.20, 9.10
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2025-44003?
- CVE-2025-44003 is a medium-severity vulnerability in Gallagher T-Series Readers, classified under Missing Release of Resource after Effective Lifetime. CVSS score: 4.3/10. Published 2025-07-10.
- How severe is CVE-2025-44003?
- Medium severity. CVSS v3 base score is 4.3 out of 10.