CVE-2025-59150 | Suricata: Keyword tls.subjectaltname can lead to NULL-ptr deref

Exp

Suricata is a network IDS, IPS and NSM engine developed by the OISF (Open Information Security Foundation) and the Suricata community. Version 8.0.0's usage of the tls.subjectaltname keyword can lead to a segmentation fault when the decoded subjectaltname contains a NULL byte. This issue is fixed in version 8.0.1. To workaround this issue, disable rules using the tls.subjectaltname keyword.

Published: 2025-10-01 Last update: 2025-10-23 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2025-59150 is rated Exploit Available (57.6/100): CVSS High severity, with low exploitation likelihood (EPSS 0.15%). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

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

Public exploit references (Exploit-DB) for CVE-2025-59150

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2025-59150

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 2026-03-11 0.11% 0.15% +0.04%
2 2026-02-12 0.15% 0.11% -0.04%
3 2026-01-31 — 0.15% —

Full EPSS history (5 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-59150

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-2025-59150

OS Trackers for CVE-2025-59150

vendor priority summary link
alpine high CVE-2025-59150: 1 source package rows (suricata); 2 state rows across 2 repos (3.23-community, edge-community); fixed 0, open 2. https://security.alpinelinux.org/vuln/CVE-2025-59150
debian unimportant CVE-2025-59150 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-2025-59150
ubuntu medium CVE-2025-59150 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-2025-59150

Affected software / configurations for CVE-2025-59150

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

References for CVE-2025-59150

cvelogic Threat Intelligence