The vulnerability of the ZFS_IOC_RECV_NEW handler of the OpenZFS component in FreeBSD’s operating systems allows a attacker to corrupt memory.
🗓️ 12 Aug 2026 00:00:00Reported by FSTEC of Russia — Information Security Threat DatabaseType 
bdu_fstec🔗 bdu.fstec.ru👁 6 Views
| Reporter | Title | Published | Views | Family All 10 |
|---|---|---|---|---|
 | FreeBSD -- Multiple vulnerabilities in OpenZFS | 30 Jun 202600:00 | – | freebsd |
 | CVE-2026-49430 | 19 Aug 202605:15 | – | cve |
 | CVE-2026-49430 Kernel heap overflow in ZFS_IOC_RECV_NEW ioctl | 19 Aug 202605:15 | – | cvelist |
 | EUVD-2026-62240 | 19 Aug 202605:15 | – | euvd |
 | FreeBSD-SA-26:40.zfs | 30 Jun 202600:00 | – | freebsd_advisory |
 | FreeBSD : FreeBSD -- Multiple vulnerabilities in OpenZFS (9534b664-74e1-11f1-958d-bc241121aa0a) | 1 Jul 202600:00 | – | nessus |
 | CVE-2026-49430 | 19 Aug 202606:17 | – | nvd |
 | FreeBSD Security Advisory - FreeBSD-SA-26:40.zfs | 30 Jun 202600:00 | – | packetstormnews |
 | PT-2026-71931 | 17 Jun 202600:00 | – | ptsecurity |
 | CVE-2026-49430 Kernel heap overflow in ZFS_IOC_RECV_NEW ioctl | 19 Aug 202605:15 | – | vulnrichment |
| Source | Link |
|---|---|
| freebsd | www.freebsd.org/security/advisories/FreeBSD-SA-26:40.zfs.asc |
| opennet | www.opennet.ru/opennews/art.shtml |
| cybersecurity-help | www.cybersecurity-help.cz/vdb/vulns/136009/ |
| web | www.web.nvd.nist.gov/view/vuln/detail |
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12 Aug 2026 00:00Current
5.4Medium risk
Vulners AI Score5.4
CVSS 26.8
CVSS 37.8
EPSS0.00162