CVE-2025-65942
VictoriaMetrics Snappy Decoder DoS Vulnerability is Causing OOM
Description
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.
INFO
Published Date :
Nov. 25, 2025, 11:15 p.m.
Last Modified :
Oct. 19, 2026, 1:10 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | LOW | [email protected] |
Solution
- Update VictoriaMetrics to version 1.110.23 or later.
- Update VictoriaMetrics to version 1.122.8 or later.
- Update VictoriaMetrics to version 1.129.1 or later.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-65942.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-65942 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-65942
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-65942 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2025-65942 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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CVE Translated by [email protected]
Oct. 19, 2026
Action Type Old Value New Value Added Translation Title: VictoriaMetrics, Description: VictoriaMetrics es una solución escalable para la monitorización y gestión de datos de series temporales. En las versiones desde la 1.0.0 hasta la 1.110.23, desde la 1.111.0 hasta la 1.122.8, y desde la 1.123.0 hasta la 1.129.1, las versiones afectadas son vulnerables a ataques de DoS porque el decodificador snappy ignoraba los límites de tamaño de solicitud de VictoriaMetrics, permitiendo que bloques malformados desencadenaran un uso excesivo de memoria. Esto podría llevar a errores OOM y a inestabilidad del servicio. La solución aplica comprobaciones de tamaño de bloque basadas en los límites de MaxRequest. Este problema ha sido parcheado en las versiones 1.110.23, 1.122.8 y 1.129.1. -
CVE Modified by [email protected]
Jun. 17, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'VictoriaMetrics', 'product': 'VictoriaMetrics', 'versions': [{'status': 'affected', 'version': '>= 1.0.0, < 1.110.23'}, {'status': 'affected', 'version': '>= 1.111.0, < 1.122.8'}, {'status': 'affected', 'version': '>= 1.123.0, < 1.129.1'}]}] -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jun. 17, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2025-65942', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2025-11-26T14:51:42.387821Z'} -
New CVE Received by [email protected]
Nov. 25, 2025
Action Type Old Value New Value Added Description 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. Added CVSS V3.1 AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L Added CWE CWE-770 Added Reference https://github.com/VictoriaMetrics/VictoriaMetrics/commit/51b44afd34d2c9a392d4ebedeeb5b4a7f5beca24 Added Reference https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.110.23 Added Reference https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.122.8 Added Reference https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.129.1 Added Reference https://github.com/VictoriaMetrics/VictoriaMetrics/security/advisories/GHSA-66jq-2c23-2xh5