CVE-2023-53873CWE-400

SyncBreeze 15.2.24 Denial of Service via Login Endpoint Overflow

High · published December 15, 2025

CVSS v4.0
8.7
EPSS
0%
Percentile
41.3
In the wild
Unconfirmed
What it is

SyncBreeze 15.2.24 contains a denial of service vulnerability in the login authentication mechanism that allows attackers to crash the service. Attackers can send an oversized password parameter with repeated 'password=' values to overwhelm the login endpoint and potentially disrupt service availability.

The record
Technical detail
CVSS v4.0
8.7 · HIGH
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
EPSS
0.00492 · 41.3th percentile
Weakness
CWE-400 · Uncontrolled Resource Consumption
Published
2025-12-15T20:28Z
EPSS history
Timeline
  • 15 DEC 20:28Z
    SyncBreeze 15.2.24 Denial of Service via Login Endpoint Overflow
    cvelistv5