Vulnerability · Published Dec 15, 2025 · Assigned by VulnCheck
CVE-2023-53873SyncBreeze 15.2.24 Denial of Service via Login Endpoint Overflow
High 8.7
In plain English
A high-severity uncontrolled resource consumption in SyncBreeze from Syncbreeze. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 42% of all known vulnerabilities).
Severity (CVSS 4.0)8.7High
Exploit odds (30 days)0.5%top 57.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Syncbreeze | SyncBreeze | 15.2.24 |
Weakness: CWE-400 · 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
References
- ExploitDB-51725 exploit
- SyncBreeze Product Webpage product
- VulnCheck Advisory: SyncBreeze 15.2.24 Denial of Service via Login Endpoint Overflow third-party-advisory