CVE-2025-43960

HighCVSS 8.6/10Last modified Jun 17, 2026

Description

Adminer 4.8.1, when using Monolog for logging, allows a Denial of Service (memory consumption) via a crafted serialized payload (e.g., using s:1000000000), leading to a PHP Object Injection issue. Remote, unauthenticated attackers can trigger this by sending a malicious serialized object, which forces excessive memory usage, rendering Adminer’s interface unresponsive and causing a server-level DoS. While the server may recover after several minutes, multiple simultaneous requests can cause a complete crash requiring manual intervention.

Metrics

CVSS 3.1 8.6/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L

Weakness enumeration

CWE-502

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

https://github.com/Seldaek/monologProduct
https://github.com/far00t01/CVE-2025-43960Exploit, Third Party Advisory
https://github.com/vrana/adminer/compare/v4.8.1...v4.8.2Release Notes
https://www.adminer.orgProduct

Timeline

Published: Aug 25, 2025
Last modified: Jun 17, 2026
NVD status: Analyzed

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