The vulnerability of the socket parameter processor IPV6_MSFILTER in FreeBSD operating systems allows attackers to increase their privileges.
🗓️ 10 Aug 2026 00:00:00Reported by FSTEC of Russia — Information Security Threat DatabaseType 
bdu_fstec🔗 bdu.fstec.ru👁 5 Views
| Reporter | Title | Published | Views | Family All 12 |
|---|---|---|---|---|
 | CVE-2026-49412 | 27 Jun 202609:02 | – | attackerkb |
 | FreeBSD -- Use-after-free bug in the IPV6_MSFILTER socket option handler | 9 Jun 202600:00 | – | freebsd |
 | CVE-2026-49412 | 27 Jun 202609:50 | – | circl |
 | CVE-2026-49412 | 27 Jun 202609:02 | – | cve |
 | CVE-2026-49412 Use-after-free bug in the IPV6_MSFILTER socket option handler | 27 Jun 202609:02 | – | cvelist |
 | EUVD-2026-39964 | 27 Jun 202609:02 | – | euvd |
 | FreeBSD-SA-26:29.ip6_multicast | 9 Jun 202600:00 | – | freebsd_advisory |
 | FreeBSD : FreeBSD -- Use-after-free bug in the IPV6_MSFILTER socket option handler (c5b7ac13-6473-11f1-958d-bc241121aa0a) | 11 Jun 202600:00 | – | nessus |
 | CVE-2026-49412 | 27 Jun 202609:16 | – | nvd |
 | FreeBSD Security Advisory - FreeBSD-SA-26:29.ip6_multicast | 9 Jun 202600:00 | – | packetstormnews |
10
Data
Build on a solid foundation with Vulners data
We provide the essential building blocks for cybersecurity solutions with comprehensive, structured, and constantly updated vulnerability and exploits data
Api
Power your application with Vulners API
The Vulners REST API offers reliable, high-performance access to vulnerability intelligence, with 99.9% SLA uptime and CDN-backed data delivery for seamless global access
App
Assess and manage vulnerabilities with Vulners tools
Built on top of Vulners' database and SDK, end-user solutions give security professionals and developers lightweight and powerful tools for vulnerability remediation
10 Aug 2026 00:00Current
5.3Medium risk
Vulners AI Score5.3
CVSS 26.8
CVSS 37.8
EPSS0.00104