5.5

CVE-2024-26774: linux Divide By Zero

CVSS: 5.5v3.1MediumModified
AliasesUBUNTU-CVE-2024-26774DEBIAN-CVE-2024-26774
Published 03-04-2024Last modified 23-05-2026
Open JSON

Vulnerability summary

CVE-2024-26774 is a medium (CVSS 5.5) Divide By Zero vulnerability in linux. EPSS estimates a 0.24% chance of exploitation in the next 30 days, higher than 13.7% of scored vulnerabilities.

Overall risk
22/100
0100
Low · default modelHow is this calculated?
CVSS score
5.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.24%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 15 · Related 14
RHSA-2024:9315SUSE-SU-2024:2135-1SUSE-SU-2024:2203-1SUSE-SU-2024:2973-1SUSE-SU-2025:20008-1USN-6820-1

Timeline

  1. 03-04-2024
    PublishedVulnerability first disclosed.
  2. 23-05-2026
    Last modifiedVulnerability information updated.

Description

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.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.24%

Chance of exploitation in the next 30 days

Percentile

14%

Versus all other CVEs

30-day change

0.00 pp

From 0.24% on 18-09-2026

18-09-202618-10-2026
EPSS score
0.24%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Ubuntu117 products
  • linuxAll versions (No fix recorded) | < 5.15.0-112.122
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.15.0-1063.69
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 83e80a6e3543f37f74c8e48a5f305b054b65ce2a, < 8b40eb2e716b503f7a4e1090815a17b1341b2150 | ≥ 83e80a6e3543f37f74c8e48a5f305b054b65ce2a, < f32d2a745b02123258026e105a008f474f896d6a | ≥ 83e80a6e3543f37f74c8e48a5f305b054b65ce2a, < 8cf9cc602cfb40085967c0d140e32691c8b71cf3 | ≥ 83e80a6e3543f37f74c8e48a5f305b054b65ce2a, < 993bf0f4c393b3667830918f9247438a8f6fdb5b | 398a0fdb38d9ab5e68023667cc5e6e3d109e2d6b | ≥ 5.19.12, < 5.20 | 6.0
  • linux_kernel< 5.15.150 | ≥ 5.16, < 6.1.80 | ≥ 6.2, < 6.6.19 | ≥ 6.7, < 6.7.7 | 6.8:rc1 | 6.8:rc2
Debian1 product
  • linux< 6.1.82-1 | < 6.7.7-1

3 vendors · 120 products

References

19 links
Show all 19 references