The vulnerability of the smb_lazy_parent_lease_break_close() function in the fs/smb/server/oplock.c module of the Smb subsystem of the Linux operating system allows a attacker to compromise the confidentiality, integrity, and accessibility of the protected information.
🗓️ 30 Jul 2026 00:00:00Reported by FSTEC of Russia — Information Security Threat DatabaseType 
bdu_fstec🔗 bdu.fstec.ru👁 3 Views
| Reporter | Title | Published | Views | Family All 17 |
|---|---|---|---|---|
 | CVE-2026-43379 | 8 May 202614:21 | – | attackerkb |
 | Astra Linux – Vulnerability in Linux 5.10 | 20 May 202605:53 | – | astralinux |
 | Linux kernel 安全漏洞 | 8 May 202600:00 | – | cnnvd |
 | CVE-2026-43379 | 8 May 202614:21 | – | cve |
 | CVE-2026-43379 ksmbd: fix use-after-free in smb_lazy_parent_lease_break_close() | 8 May 202614:21 | – | cvelist |
 | CVE-2026-43379 | 8 May 202614:21 | – | debiancve |
 | EUVD-2026-28685 | 8 May 202615:31 | – | euvd |
 | CVE-2026-43379 | 8 May 202615:16 | – | nvd |
 | BELL-CVE-2026-43379 | 21 May 202606:10 | – | osv |
| CVE-2026-43379 ksmbd: fix use-after-free in smb_lazy_parent_lease_break_close() | 8 May 202614:21 | – | osv |
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30 Jul 2026 00:00Current
7.6High risk
Vulners AI Score7.6
CVSS 38.8
CVSS 29
EPSS0.00444