CVE-2025-59148 | Suricata's improper use of entropy keyword can lead to a NULL-ptr deref

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.

Published: 2025-10-01 Last update: 2025-10-06 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2025-59148 is rated Low Risk (36.5/100): CVSS High severity, with low exploitation likelihood (EPSS 0.06%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2025-59148

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-10-07 0.05% 0.06% +0.01%
2 2025-10-02 — 0.05% —

Full EPSS history (2 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-59148

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 3.6 [email protected]

Weakness enumeration for CVE-2025-59148

OS Trackers for CVE-2025-59148

vendor priority summary link
alpine high CVE-2025-59148: 1 source package rows (suricata); 15 state rows across 3 repos (3.22-community, 3.23-community, edge-community); fixed 0, open 15. https://security.alpinelinux.org/vuln/CVE-2025-59148
debian unimportant CVE-2025-59148 unimportant priority: Debian including 1 source packages (suricata), 4 status rows across 4 suites (bullseye, forky, sid, trixie): resolved 4. https://security-tracker.debian.org/tracker/CVE-2025-59148
ubuntu medium CVE-2025-59148 medium priority: Ubuntu including 1 source packages (suricata), 7 status rows across 7 suites (bionic, jammy, noble, plucky, questing, upstream, xenial): needs-triage 5, ignored 1, not-affected 1. https://ubuntu.com/security/CVE-2025-59148

Affected software / configurations for CVE-2025-59148

Vendor Product Version Raw CPE
oisf suricata 8.0.0 cpe:2.3:a:oisf:suricata:8.0.0:-:*:*:*:*:*:*
oisf suricata 8.0.0 cpe:2.3:a:oisf:suricata:8.0.0:beta1:*:*:*:*:*:*
oisf suricata 8.0.0 cpe:2.3:a:oisf:suricata:8.0.0:rc1:*:*:*:*:*:*

References for CVE-2025-59148

cvelogic Threat Intelligence