5.5

CVE-2026-45948: linux

CVSS: 5.5v3.1MediumAnalyzed
AliasesUBUNTU-CVE-2026-45948DEBIAN-CVE-2026-45948
Published 27-05-2026Last modified 27-05-2026
Open JSON

Vulnerability summary

CVE-2026-45948 is a medium (CVSS 5.5) vulnerability in linux. EPSS estimates a 0.16% chance of exploitation in the next 30 days, higher than 4.7% 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
0.16%
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 37 · Related 37
OPENSUSE-SU-2026:21388-1SUSE-SU-2026:22521-1SUSE-SU-2026:22522-1SUSE-SU-2026:22665-1SUSE-SU-2026:22666-1SUSE-SU-2026:22742-1

Timeline

  1. 27-05-2026
    PublishedVulnerability first disclosed.

Description

In the Linux kernel, the following vulnerability has been resolved: ext4: fix memory leak in ext4_ext_shift_extents() In ext4_ext_shift_extents(), if the extent is NULL in the while loop, the function returns immediately without releasing the path obtained via ext4_find_extent(), leading to a memory leak. Fix this by jumping to the out label to ensure the path is properly released.

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

0.00 pp

From 0.16% 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

Affected systems

Ubuntu157 products
  • linuxAll versions (No fix recorded) | < 5.15.0-186.196 | < 6.8.0-134.134
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.15.0-1112.119 | < 6.8.0-1060.63
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ a18ed359bdddcded4f97ff5e2f07793ff9336913, < 7e807cb8603b7664fa630a696cd891d9a03c248d | ≥ a18ed359bdddcded4f97ff5e2f07793ff9336913, < afc5e61e1a07b2b833bd72cbee36ecce9cd901e2 | ≥ a18ed359bdddcded4f97ff5e2f07793ff9336913, < 1bce219ee5512cf179ba40cf114945a14a16e21f | ≥ a18ed359bdddcded4f97ff5e2f07793ff9336913, < 4a79fde8db7eba7f1128d971ceba4e3c9ac84aec | ≥ a18ed359bdddcded4f97ff5e2f07793ff9336913, < 2f4b1052246ca646bb17bfe0f53df2fdf9729b58 | ≥ a18ed359bdddcded4f97ff5e2f07793ff9336913, < 12615ab4bfb69678e5d961b28bb70040299e51b1 | ≥ a18ed359bdddcded4f97ff5e2f07793ff9336913, < bd7b52557e4a3ccd7595fdb3a585f1257de57935 | ≥ a18ed359bdddcded4f97ff5e2f07793ff9336913, < ca81109d4a8f192dc1cbad4a1ee25246363c2833 | 3.15
  • linux_kernel≥ 3.15.1, < 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 | 3.15 | 3.15:rc3 | 3.15:rc4 | 3.15:rc5 | 3.15:rc6 | 3.15:rc7 | 3.15:rc8
Debian1 product
  • linux< 6.1.170-1 | < 6.12.85-1 | < 6.18.14-1

3 vendors · 160 products

References

37 links
Show all 37 references