5.5

CVE-2026-45974: linux

CVSS: 5.5v3.1MediumAnalyzed
AliasesUBUNTU-CVE-2026-45974DEBIAN-CVE-2026-45974
Published 27-05-2026Last modified 27-05-2026
Open JSON

Vulnerability summary

CVE-2026-45974 is a medium (CVSS 5.5) vulnerability in linux. EPSS estimates a 0.16% chance of exploitation in the next 30 days, higher than 5.1% 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
0.16%
0%100%
Low · +0.03 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 36 · Related 36
OPENSUSE-SU-2026:21388-1SUSE-SU-2026:22433-1SUSE-SU-2026:22436-1SUSE-SU-2026:22458-1SUSE-SU-2026:22460-1SUSE-SU-2026:22742-1

Timeline

  1. 27-05-2026
    PublishedVulnerability first disclosed.

Description

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix invalid leaf access in btrfs_quota_enable() if ref key not found If btrfs_search_slot_for_read() returns 1, it means we did not find any key greater than or equals to the key we asked for, meaning we have reached the end of the tree and therefore the path is not valid. If this happens we need to break out of the loop and stop, instead of continuing and accessing an invalid path.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.16%

Chance of exploitation in the next 30 days

Percentile

5%

Versus all other CVEs

30-day change

+0.03 pp

From 0.13% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.16%

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

No weakness data has been published for this record.

Affected systems

Ubuntu145 products
  • linux< 5.15.0-186.196 | < 6.8.0-134.134 | All versions (No fix recorded)
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 5.15.0-1112.119 | < 6.8.0-1060.63 | All versions (No fix recorded)
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 5223cc60b40ae525ae6c94e98824129f1a5b4ae5, < 023545e272f369d487e6a986c1e321c6e04be1da | ≥ 5223cc60b40ae525ae6c94e98824129f1a5b4ae5, < fd4913a53e3b54ad7e161847291439fe445d6356 | ≥ 5223cc60b40ae525ae6c94e98824129f1a5b4ae5, < b5b8ade9da452086e78f5d519b90d3769e354853 | ≥ 5223cc60b40ae525ae6c94e98824129f1a5b4ae5, < 1ee1d006c9fe4d6be5527ab1c84216b80cccbe40 | ≥ 5223cc60b40ae525ae6c94e98824129f1a5b4ae5, < 0761447f6f51e1c7997960d8e6559337deed6729 | ≥ 5223cc60b40ae525ae6c94e98824129f1a5b4ae5, < d7cf2314dd5e8661c05d076cd627eea9a7f76616 | ≥ 5223cc60b40ae525ae6c94e98824129f1a5b4ae5, < b2bd557b75b760e4b9d209112bda19314bd64558 | ≥ 5223cc60b40ae525ae6c94e98824129f1a5b4ae5, < ecb7c2484cfc83a93658907580035a8adf1e0a92 | ecce1be9f2a366990d0e75dd249fb324e83c34a9 | ≥ 5.9.7, < 5.10 | 5.10
  • linux_kernel≥ 5.9.7, < 5.10 | ≥ 5.10.1, < 5.10.252 | ≥ 5.11, < 5.15.202 | ≥ 5.16, < 6.1.165 | ≥ 6.2, < 6.6.128 | ≥ 6.7, < 6.12.75 | ≥ 6.13, < 6.18.14 | ≥ 6.19, < 6.19.4 | 5.10 | 5.10:rc2 | 5.10:rc3 | 5.10:rc4 | 5.10:rc5 | 5.10:rc6 | 5.10:rc7
Debian1 product
  • linux< 6.1.170-1 | < 6.12.85-1 | < 6.18.14-1

3 vendors · 148 products

References

37 links
Show all 37 references