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The vulnerability of the copy_from_user() and copy_to_user() functions in the kernel module arch/sparc/lib/U1memcpy.S of the Linux operating system allows a hacker to trigger a service failure.
🗓️ 08 Dec 2025 00:00:00Reported by FSTEC of Russia — Information Security Threat DatabaseType 
bdu_fstec🔗 bdu.fstec.ru👁 1 Views
| Reporter | Title | Published | Views | Family All 222 |
|---|---|---|---|---|
 | Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1 | 19 Jun 202611:10 | – | astralinux |
 | CVE-2025-40126 | 2 Apr 202617:00 | – | circl |
 | Linux kernel 安全漏洞 | 12 Nov 202500:00 | – | cnnvd |
 | CVE-2025-40126 | 12 Nov 202510:23 | – | cve |
 | CVE-2025-40126 sparc: fix accurate exception reporting in copy_{from_to}_user for UltraSPARC | 12 Nov 202510:23 | – | cvelist |
 | [SECURITY] [DLA 4379-1] linux-6.1 security update | 25 Nov 202517:19 | – | debian |
 | CVE-2025-40126 | 12 Nov 202510:23 | – | debiancve |
 | Debian dla-4379 : linux-config-6.1 - security update | 25 Nov 202500:00 | – | nessus |
| Photon OS 4.0: Linux PHSA-2025-4.0-0899 | 8 Nov 202500:00 | – | nessus |
| Photon OS 5.0: Linux PHSA-2025-5.0-0655 | 24 Oct 202500:00 | – | nessus |
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11 Mar 2026 00:00Current
5.8Medium risk
Vulners AI Score5.8
CVSS 24.9
CVSS 35.5
EPSS0.00187