Allocation of Resources Without Limits or Throttling in Moodle - CVE-2025-54869
Published: March 25, 2026
Vulnerability identifier: #VU124433
CSH Severity:
CVSS v4: 0 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2025-54869
CWE-ID: CWE-770
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to allocation of resources without limits or throttling in the upstream FPDI library. A remote attacker can cause a denial of service condition on the target system.
Affected software
Moodle
How to mitigate CVE-2025-54869
Install updates from vendor's website.
Moodle - addressed in versions 4.1.21, 4.4.11, 4.5.7, 5.0.3