The vulnerability of the File Descriptor Handler component in the operating system kernel of FreeBSD allows a attacker to execute arbitrary code with root privileges.
🗓️ 10 Aug 2026 00:00:00Reported by FSTEC of Russia — Information Security Threat DatabaseType 
bdu_fstec🔗 bdu.fstec.ru👁 4 Views
| Reporter | Title | Published | Views | Family All 14 |
|---|---|---|---|---|
 | FreeBSD -- Stack overflow via select() file descriptor set overflow | 29 Apr 202600:00 | – | freebsd |
 | CVE-2026-39457 | 30 Apr 202608:01 | – | attackerkb |
 | CVE-2026-39457 | 30 Apr 202610:23 | – | circl |
 | FreeBSD 安全漏洞 | 30 Apr 202600:00 | – | cnnvd |
 | CVE-2026-39457 | 30 Apr 202608:01 | – | cve |
 | CVE-2026-39457 Stack overflow via select() file descriptor set overflow | 30 Apr 202608:01 | – | cvelist |
 | EUVD-2026-26356 | 30 Apr 202608:01 | – | euvd |
 | FreeBSD-SA-26:16.libnv | 29 Apr 202600:00 | – | freebsd_advisory |
 | FreeBSD : FreeBSD -- Stack overflow via select() file descriptor set overflow (892fabf5-4435-11f1-bb07-bc241121aa0a) | 30 Apr 202600:00 | – | nessus |
 | CVE-2026-39457 | 30 Apr 202609:16 | – | nvd |
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
6Medium risk
Vulners AI Score6
CVSS 26.8
CVSS 37.8
EPSS0.00151