What is CVE-2024-26988?

CVE-2024-26988 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10, classified as a Out-of-bounds Write flaw (CWE-787), affecting Linux kernel versions from 5.1 onward and patched in 5.10.216, 5.15.157, 6.1.88 and others. CVE-2024-26988 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2024-26988?

CVE-2024-26988 has a CVSS score of 7.8 out of 10, rated High severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Is there a patch available for CVE-2024-26988?

Yes, CVE-2024-26988 has been patched. Fixed versions include 5.10.216, 5.15.157, 6.1.88 and others. If you are running Linux kernel 5.1 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2024-26988 actively exploited?

CVE-2024-26988 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Out-of-bounds Write (CWE-787)?

The product writes data past the end or before the beginning of the intended buffer. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/787.html

CVE-2024-26988

High

In the Linux kernel, the following vulnerability has been resolved: init/main.c: Fix potential static_command_line memory overflow We allocate memory of size 'xlen + strlen(boot_command_line) + 1' for static_command_line, but the strings copied into static_command_line are extra_command_line and command_line, rather than extra_command_line and boot_command_line. When strlen(command_line) > strlen(boot_command_line), static_command_line will overflow. This patch just recovers strlen(command_line) which was miss-consolidated with strlen(boot_command_line) in the commit f5c7310ac73e ("init/main: add checks for the return value of memblock_alloc*()")

Package Linux Kernel

Published 2024-05-01

Last modified 2026-05-12

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

7.8

out of 10

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Vector string

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

Weakness type

CWE-787

CVE-2024-26988 is a Out-of-bounds Write vulnerability

What is Out-of-bounds Write?

The product writes data past the end or before the beginning of the intended buffer. Learn more on MITRE CWE

Affected versions

Linux kernel versions 5.1 and later are affected. Fixed in 5.10.216, 5.15.157, 6.1.88, 6.6.29, 6.8.8, 6.9 and their respective stable series.

Affected from

≥ 5.1

Fixed in

✓ 5.10.216 5.10.x ✓ 5.15.157 5.15.x ✓ 6.1.88 6.1.x ✓ 6.6.29 6.6.x ✓ 6.8.8 6.8.x ✓ 6.9

References

12 total

Kernel Git
https://git.kernel.org/stable/c/0dc727a4e05400205358a22c3d01ccad2c8e1fe4

Patch
Kernel Git
https://git.kernel.org/stable/c/2ef607ea103616aec0289f1b65d103d499fa903a

Patch
Kernel Git
https://git.kernel.org/stable/c/46dad3c1e57897ab9228332f03e1c14798d2d3b9

Patch
Kernel Git
https://git.kernel.org/stable/c/76c2f4d426a5358fced5d5990744d46f10a4ccea

Patch
Kernel Git
https://git.kernel.org/stable/c/81cf85ae4f2dd5fa3e43021782aa72c4c85558e8

Patch

Showing 5 of 12 references View all on NVD

Details

CVE ID CVE-2024-26988

Severity High

CVSS score 7.8 / 10

CVSS version 3.1

Published 2024-05-01

Modified 2026-05-12

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2024-26988?

CVE-2024-26988 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 , classified as an Out-of-bounds Write flaw (CWE-787) . It affects Linux kernel versions from 5.1 onward and has been patched in 5.10.216, 5.15.157, 6.1.88 and others. CVE-2024-26988 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2024-26988?

CVE-2024-26988 has a CVSS score of 7.8 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Is there a patch available for CVE-2024-26988?

Yes. CVE-2024-26988 has been patched. Fixed versions include 5.10.216, 5.15.157, 6.1.88 and others. If you are running Linux kernel 5.1 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2024-26988 actively exploited?

No. CVE-2024-26988 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.