What is the CVSS score of CVE-2025-29917?

CVE-2025-29917 has a CVSS 3.1 base score of 6.2 (Medium). CVSS vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H. EPSS exploitation probability: 0.1%.

Which versions of Suricata are affected by CVE-2025-29917?

Organizations using Suricata should be aware of moderate risk from CVE-2025-29917 rated CVSS 6.2. Exploitation could compromise the security of affected deployments.. A patch is available.

How to fix or mitigate CVE-2025-29917?

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Vendor patch is available.

Suricata CVE-2025-29917

MEDIUM

Allocation of Resources Without Limits or Throttling (CWE-770)

2025-04-10 security-advisories@github.com

Denial Of Service Suricata Suse

6.2

CVSS 3.1 · GitHub Advisory

Severity by source

GitHub Advisory PRIMARY

6.2 MEDIUM

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

SUSE

MEDIUM

qualitative

Primary rating from GitHub Advisory.

CVSS VectorGitHub Advisory

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

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 18:36 vuln.today

Patch released

Mar 28, 2026 - 18:36 nvd

Patch available

CVE Published

Apr 10, 2025 - 21:15 nvd

MEDIUM 6.2

DescriptionGitHub Advisory

Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. The bytes setting in the decode_base64 keyword is not properly limited. Due to this, signatures using the keyword and setting can cause large memory allocations of up to 4 GiB per thread. This vulnerability is fixed in 7.0.9.

AnalysisAI

Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Rated medium severity (CVSS 6.2), this vulnerability is no authentication required, low attack complexity. This Allocation of Resources Without Limits vulnerability could allow attackers to exhaust system resources through uncontrolled allocation.

Technical ContextAI

This vulnerability is classified as Allocation of Resources Without Limits (CWE-770), which allows attackers to exhaust system resources through uncontrolled allocation. Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. The bytes setting in the decode_base64 keyword is not properly limited. Due to this, signatures using the keyword and setting can cause large memory allocations of up to 4 GiB per thread. This vulnerability is fixed in 7.0.9. Affected products include: Oisf Suricata. Version information: up to 4.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Set resource limits, implement rate limiting, validate input sizes.