The vulnerability of the generic_hwtstamp_ioctl_lower() function in the net/core/dev_ioctl.c module, which supports network functions of the Linux kernel, allows a hacker to cause a service failure.
🗓️ 23 Jul 2026 00:00:00Reported by FSTEC of Russia — Information Security Threat DatabaseType 
bdu_fstec🔗 bdu.fstec.ru👁 7 Views
| Reporter | Title | Published | Views | Family All 76 |
|---|---|---|---|---|
 | Astra Linux – Vulnerability in Linux 5.10 | 20 May 202605:53 | – | astralinux |
 | CVE-2025-40255 | 2 Apr 202617:00 | – | circl |
 | Linux kernel 安全漏洞 | 4 Dec 202500:00 | – | cnnvd |
 | CVE-2025-40255 | 4 Dec 202516:08 | – | cve |
 | CVE-2025-40255 net: core: prevent NULL deref in generic_hwtstamp_ioctl_lower() | 4 Dec 202516:08 | – | cvelist |
 | CVE-2025-40255 | 4 Dec 202516:08 | – | debiancve |
 | EUVD-2025-201202 | 4 Dec 202516:08 | – | euvd |
 | CVE-2025-40255 | 4 Dec 202516:16 | – | nvd |
 | openSUSE 16 Security Update : kernel (openSUSE-SU-2026:20145-1) | 4 Feb 202600:00 | – | nessus |
| SUSE SLES16 Security Update : kernel (SUSE-SU-2026:20220-1) | 6 Feb 202600:00 | – | nessus |
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23 Jul 2026 00:00Current
5.9Medium risk
Vulners AI Score5.9
CVSS 24.6
CVSS 35.5
EPSS0.00182