What is CVE-2022-50222?

CVE-2022-50222 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, affecting Linux kernel versions from 4.19 onward and patched in 4.19.256, 5.4.211, 5.10.137 and others. CVE-2022-50222 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2022-50222?

CVE-2022-50222 has a CVSS score of 5.5 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2022-50222?

Yes, CVE-2022-50222 has been patched. Fixed versions include 4.19.256, 5.4.211, 5.10.137 and others. If you are running Linux kernel 4.19 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2022-50222 actively exploited?

CVE-2022-50222 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2022-50222

Medium

In the Linux kernel, the following vulnerability has been resolved: tty: vt: initialize unicode screen buffer syzbot reports kernel infoleak at vcs_read() [1], for buffer can be read immediately after resize operation. Initialize buffer using kzalloc(). ---------- #include <fcntl.h> #include <unistd.h> #include <sys/ioctl.h> #include <linux/fb.h> int main(int argc, char *argv[]) { struct fb_var_screeninfo var = { }; const int fb_fd = open("/dev/fb0", 3); ioctl(fb_fd, FBIOGET_VSCREENINFO, &var); var.yres = 0x21; ioctl(fb_fd, FBIOPUT_VSCREENINFO, &var); return read(open("/dev/vcsu", O_RDONLY), &var, sizeof(var)) == -1; } ----------

Package Linux Kernel

Published 2025-06-18

Last modified 2025-11-19

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

5.5

out of 10

Medium

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

High

Vector string

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected versions

Linux kernel versions 4.19 and later are affected. Fixed in 4.19.256, 5.4.211, 5.10.137, 5.15.61, 5.18.18, 5.19.2, 6.0 and their respective stable series.

Affected from

≥ 4.19

Fixed in

✓ 4.19.256 4.19.x ✓ 5.4.211 5.4.x ✓ 5.10.137 5.10.x ✓ 5.15.61 5.15.x ✓ 5.18.18 5.18.x ✓ 5.19.2 5.19.x ✓ 6.0

References

The following references provide additional information about CVE-2022-50222 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Kernel patch commit
https://git.kernel.org/stable/c/446f123aa6021e5f75a20789f05ff3f7ae51a42f
Patch
Kernel patch commit
https://git.kernel.org/stable/c/5c6c65681f39bf71bc72ed589dec3b8b20e75cac
Patch
Kernel patch commit
https://git.kernel.org/stable/c/777a462e1ae50a01fc4a871efa8e34d596a1e17d
Patch

7 patch commits total View all on NVD

Details

CVE ID CVE-2022-50222

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2025-06-18

Modified 2025-11-19

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2022-50222?

CVE-2022-50222 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 4.19 onward and has been patched in 4.19.256, 5.4.211, 5.10.137 and others. CVE-2022-50222 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2022-50222?

CVE-2022-50222 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2022-50222?

Yes — CVE-2022-50222 has been patched. Fixed versions include 4.19.256, 5.4.211, 5.10.137 and others. If you are running Linux kernel 4.19 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2022-50222 actively exploited?

No — CVE-2022-50222 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.