CVE-2025-43960HIGH 8.6EPSS p47.6%

CVE-2025-43960CVE-2025-43960

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.

Scoring

CVSS 3.18.6 (HIGH)
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L
EPSS0.68% probability of exploitation · percentile 47.6% · 2026-06-19T12:03:05Z
Published2025-08-25
Last modified2025-09-12

Underlying weaknesses· 1

CWE-502

References

  1. https://github.com/Seldaek/monolog
  2. https://github.com/far00t01/CVE-2025-43960
  3. https://github.com/vrana/adminer/compare/v4.8.1...v4.8.2
  4. https://www.adminer.org

1

TypeTargetConfidenceTier
WeaknessDeserialization of Untrusted Datacwe-5020%live

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Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.