1. Home
  2. Vulnerabilities
  3. CVE-2025-64330
7.5
HIGH CVSS 3.1
CVE-2025-64330
Suricata is vulnerable to a heap buffer overflow on verdict
Description

Suricata is a network IDS, IPS and NSM engine developed by the OISF (Open Information Security Foundation) and the Suricata community. Prior to versions 7.0.13 and 8.0.2, a single byte read heap overflow when logging the verdict in eve.alert and eve.drop records can lead to crashes. This requires the per packet alert queue to be filled with alerts and then followed by a pass rule. This issue has been patched in versions 7.0.13 and 8.0.2. To reduce the likelihood of this issue occurring, the alert queue size a should be increased (packet-alert-max in suricata.yaml) if verdict is enabled.

INFO

Published Date :

Nov. 26, 2025, 11:15 p.m.

Last Modified :

Dec. 5, 2025, 1:30 p.m.

Remotely Exploit :

Yes !

Source :

[email protected]
Affected Products

The following products are affected by CVE-2025-64330 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Oisf suricata
: Total Affected Vendor : 1 | Products : 1
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 HIGH [email protected]
Solution
Update Suricata to patched versions or increase alert queue size.
  • Update Suricata to version 7.0.13 or 8.0.2.
  • Increase Suricata's packet alert queue size.
  • Ensure verdict logging is properly configured.
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-2025-64330.

URL Resource
https://github.com/OISF/suricata/commit/482e5eac9218d007adbe2410d6c00173368ce947 Patch
https://github.com/OISF/suricata/security/advisories/GHSA-83v7-gm34-f437 Vendor Advisory
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2025-64330 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-2025-64330 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-2025-64330 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2025-64330 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.

  • Initial Analysis by [email protected]

    Dec. 05, 2025

    Action Type Old Value New Value
    Added CWE CWE-787
    Added CPE Configuration OR *cpe:2.3:a:oisf:suricata:*:*:*:*:*:*:*:* versions up to (excluding) 7.0.13 *cpe:2.3:a:oisf:suricata:*:*:*:*:*:*:*:* versions from (including) 8.0.0 up to (excluding) 8.0.2
    Added Reference Type GitHub, Inc.: https://github.com/OISF/suricata/commit/482e5eac9218d007adbe2410d6c00173368ce947 Types: Patch
    Added Reference Type GitHub, Inc.: https://github.com/OISF/suricata/security/advisories/GHSA-83v7-gm34-f437 Types: Vendor Advisory
  • New CVE Received by [email protected]

    Nov. 26, 2025

    Action Type Old Value New Value
    Added Description Suricata is a network IDS, IPS and NSM engine developed by the OISF (Open Information Security Foundation) and the Suricata community. Prior to versions 7.0.13 and 8.0.2, a single byte read heap overflow when logging the verdict in eve.alert and eve.drop records can lead to crashes. This requires the per packet alert queue to be filled with alerts and then followed by a pass rule. This issue has been patched in versions 7.0.13 and 8.0.2. To reduce the likelihood of this issue occurring, the alert queue size a should be increased (packet-alert-max in suricata.yaml) if verdict is enabled.
    Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    Added CWE CWE-122
    Added Reference https://github.com/OISF/suricata/commit/482e5eac9218d007adbe2410d6c00173368ce947
    Added Reference https://github.com/OISF/suricata/security/advisories/GHSA-83v7-gm34-f437
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
Base CVSS Score: 7.5
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact