What is CVE-2024-26774?

CVE-2024-26774 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, classified as a Divide By Zero flaw (CWE-369), affecting Linux kernel versions from 5.19.12 onward and patched in 6.1.80, 6.6.19, 6.7.7 and others. CVE-2024-26774 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2024-26774?

CVE-2024-26774 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-2024-26774?

Yes, CVE-2024-26774 has been patched. Fixed versions include 6.1.80, 6.6.19, 6.7.7 and others. If you are running Linux kernel 5.19.12 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2024-26774 actively exploited?

CVE-2024-26774 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Divide By Zero (CWE-369)?

The product divides a value by zero, causing a crash or unexpected behaviour. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/369.html

CVE-2024-26774

Medium

In the Linux kernel, the following vulnerability has been resolved: ext4: avoid dividing by 0 in mb_update_avg_fragment_size() when block bitmap corrupt Determine if bb_fragments is 0 instead of determining bb_free to eliminate the risk of dividing by zero when the block bitmap is corrupted.

Package Linux Kernel

Published 2024-04-03

Last modified 2025-06-19

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

Weakness type

CWE-369

CVE-2024-26774 is a Divide By Zero vulnerability

What is Divide By Zero?

The product divides a value by zero, causing a crash or unexpected behaviour. Learn more on MITRE CWE

Affected versions

Linux kernel versions 5.19.12, 6.0 and later are affected. Fixed in 6.1.80, 6.6.19, 6.7.7, 6.8 and their respective stable series.

Affected from

≥ 5.19.12 ≥ 6.0

Fixed in

✓ 6.1.80 6.1.x ✓ 6.6.19 6.6.x ✓ 6.7.7 6.7.x ✓ 6.8

References

5 total

Kernel Git
https://git.kernel.org/stable/c/8b40eb2e716b503f7a4e1090815a17b1341b2150

Patch
Kernel Git
https://git.kernel.org/stable/c/8cf9cc602cfb40085967c0d140e32691c8b71cf3

Patch
Kernel Git
https://git.kernel.org/stable/c/993bf0f4c393b3667830918f9247438a8f6fdb5b

Patch
Kernel Git
https://git.kernel.org/stable/c/f32d2a745b02123258026e105a008f474f896d6a

Patch
Kernel Git
https://git.kernel.org/stable/c/687061cfaa2ac3095170e136dd9c29a4974f41d4

Patch

Details

CVE ID CVE-2024-26774

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2024-04-03

Modified 2025-06-19

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2024-26774?

CVE-2024-26774 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 , classified as a Divide By Zero flaw (CWE-369) . It affects Linux kernel versions from 5.19.12 onward and has been patched in 6.1.80, 6.6.19, 6.7.7 and others. CVE-2024-26774 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2024-26774?

CVE-2024-26774 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-2024-26774?

Yes. CVE-2024-26774 has been patched. Fixed versions include 6.1.80, 6.6.19, 6.7.7 and others. If you are running Linux kernel 5.19.12 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2024-26774 actively exploited?

No. CVE-2024-26774 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.