CVE-2025-65942 LOW

CVE-2025-65942: VictoriaMetrics Snappy Decoder DoS Vulnerability is Causing OOM

Vendor Victoriametrics
Product VictoriaMetrics
Weakness CWE-770 · Uncontrolled resource consumption
Published November 25, 2025
Last update November 26, 2025

CVSS base score

2.7/10
Attack vector Network
Attack complexity Low
Privileges required High
User interaction None
Confidentiality None
Integrity None

CVSS vector

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

What the vulnerability does

01Description

VictoriaMetrics is a scalable solution for monitoring and managing time series data. In versions from 1.0.0 to before 1.110.23, from 1.111.0 to before 1.122.8, and from 1.123.0 to before 1.129.1, affected versions are vulnerable to DoS attacks because the snappy decoder ignored VictoriaMetrics request size limits allowing malformed blocks to trigger excessive memory use. This could lead to OOM errors and service instability. The fix enforces block-size checks based on MaxRequest limits. This issue has been patched in versions 1.110.23, 1.122.8, and 1.129.1.

Key dates

02Disclosure timeline

November 25, 2025 CVE published
November 26, 2025 Record updated