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CVE-2025-59148

Suricata's improper use of entropy keyword can lead to a NULL-ptr deref

Published: Oct 1, 2025Updated: Oct 6, 2025 Sources: CVE List NVD BDUCWE-476
NVD MITRE
7.5CVSSHIGH
EPSS Score
0.4%
Top 68.8%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

Suricata is a network IDS, IPS and NSM engine developed by the OISF (Open Information Security Foundation) and the Suricata community. Versions 8.0.0 and below incorrectly handle the entropy keyword when not anchored to a "sticky" buffer, which can lead to a segmentation fault. This issue is fixed in version 8.0.1. To workaround this issue, users can disable rules using the entropy keyword, or validate they are anchored to a sticky buffer.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-476

Affected Products

SuricataOpen Information Security Foundation
On-prem
Security Products / vuln-mgmt-scanner
Межсетевой экран "Ideco UTM"ООО "Айдеко Софтвер"
On-prem
Networking Infrastructure / firewall
suricataOISF
On-premNetwork Device
Networking Infrastructure / firewall
suricataoisf
On-premNetwork Device
Networking Infrastructure / firewall
open information security foundationoss-projectSecurity Productsaka ofis, suricata, libhtp
ооо "айдеко софтвер"commercialRUNetworking Infrastructureaka aidco software, айде́ко софтвер
oisfoss-projectNetworking Infrastructureaka suricata, libhtp, suricata-update

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Impact
Initial Access
View detailed technique mapping

References

https://forum.suricata.io/t/suricata-8-0-1-and-7-0-12-released/6018
forum.suricata.io
https://github.com/OISF/suricata/security/advisories/GHSA-5qf6-92xg-3rr3
github.com
https://redmine.openinfosecfoundation.org/issues/7838
redmine.openinfosecfoundation.org
and 3 more references View all →

Timeline

Published
Oct 1, 2025
Last Updated
Oct 6, 2025

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