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TI-2025-36753 Aliases CVE-2025-59148

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

Priority LOW 39CWE-476Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-476.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00434 37th percentileScored 2026-11-07
Fix Fixed suricata (OISF): 8.0.1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
OISFsuricatabefore 8.0.18.0.1Patch availableCNA
  • suricata VendorOISF Affected before 8.0.1 Fixed in 8.0.1 Patch available CNA

CPE configurations NVD · 3

CPEVersionsRoleVendor
cpe:2.3:a:oisf:suricata:8.0.0:-:*:*:*:*:*:*8.0.0VulnerableOISF
cpe:2.3:a:oisf:suricata:8.0.0:beta1:*:*:*:*:*:*8.0.0 beta1VulnerableOISF
cpe:2.3:a:oisf:suricata:8.0.0:rc1:*:*:*:*:*:*8.0.0 rc1VulnerableOISF
  • cpe:2.3:a:oisf:suricata:8.0.0:-:*:*:*:*:*:* Versions 8.0.0 Vulnerable ·OISF
  • cpe:2.3:a:oisf:suricata:8.0.0:beta1:*:*:*:*:*:* Versions 8.0.0 beta1 Vulnerable ·OISF
  • cpe:2.3:a:oisf:suricata:8.0.0:rc1:*:*:*:*:*:* Versions 8.0.0 rc1 Vulnerable ·OISF

Remediation

  • Fix · CNA suricata (OISF) Fixed in 8.0.1

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-59148

References

Patch 1

Advisory 1

Other 2

  • TI-2026-33506 ikev2: unbounded client transform storage can lead to resource exhaustion CVSS 3.1HIGH 7.5
  • TI-2026-33484 Suricata lua/tls: null dereference in TlsGetCertInfo CVSS 3.1HIGH 7.5
  • TI-2024-31811 Suricata ja4: invalid alpn leads to panic CVSS 3.1HIGH 7.5
  • TI-2020-13673 Directory Traversal vulnerability found in Pfsense v.2.1.3 and Pfsense Suricata v.1.4.6… CVSS 3.1HIGH 7.5
  • TI-2023-17928 In Suricata before 6.0.13, an adversary who controls an external source of Lua rules may… CVSS 3.1CRITICAL 9.8
  • TI-2026-63304 Use after free in OISF Suricata CVSS 3.1CRITICAL 9.4
See all 99 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences