The vulnerability of the cirrusfb_check_mclk() function in the drivers/video/fbdev/cirrusfb.c driver module allows a hacker to cause a service failure in Linux-based operating systems with kernel-level video buffer devices.
🗓️ 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 42 |
|---|---|---|---|---|
 | Astra Linux – Vulnerability in Linux 5.10, Linux | 20 May 202605:53 | – | astralinux |
 | Linux kernel 安全漏洞 | 26 Feb 202500:00 | – | cnnvd |
 | CVE-2021-47641 | 26 Feb 202501:54 | – | cve |
 | CVE-2021-47641 video: fbdev: cirrusfb: check pixclock to avoid divide by zero | 26 Feb 202501:54 | – | cvelist |
 | CVE-2021-47641 | 26 Feb 202501:54 | – | debiancve |
 | EUVD-2021-34663 | 3 Oct 202520:07 | – | euvd |
 | CVE-2021-47641 | 26 Feb 202506:37 | – | nvd |
 | SUSE: Security Advisory (SUSE-SU-2025:1027-1) | 28 Mar 202500:00 | – | openvas |
| SUSE: Security Advisory (SUSE-SU-2025:1241-1) | 16 Apr 202500:00 | – | openvas |
| SUSE: Security Advisory (SUSE-SU-2025:1263-1) | 16 Apr 202500:00 | – | openvas |
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30 Jul 2026 00:00Current
6.5Medium risk
Vulners AI Score6.5
CVSS 24.6
CVSS 35.5
EPSS0.0025