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High severity · published Oct 1, 2025
CVE-2025-59150
Suricata: Keyword tls.subjectaltname can lead to NULL-ptr deref
7.5
CVSS
0.5%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 44% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SU
suricata · OISF
>= 8.0.0, < 8.0.1 · source: vendor, NVD
Affected product
SU
suricata
OISF
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-59150
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-59150
Release Notes
https://forum.suricata.io/t/suricata-8-0-1-and-7-0-12-released/6018
Patch
https://github.com/OISF/suricata/commit/d590fdfe42e995fd558315f0c24f9a352e21479d
Patch
https://github.com/OISF/suricata/security/advisories/GHSA-mhv7-qfmj-m3f3
Exploit
https://redmine.openinfosecfoundation.org/issues/7881
www.vicarius.io
https://www.vicarius.io/vsociety/posts/cve-2025-59150-suricata-detection-script
www.vicarius.io
https://www.vicarius.io/vsociety/posts/cve-2025-59150-suricata-mitigation-script
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