5.5

CVE-2026-45960: linux

CVSS: 5.5v3.1MediumAnalyzed
AliasesUBUNTU-CVE-2026-45960DEBIAN-CVE-2026-45960
Published 27-05-2026Last modified 27-05-2026
Open JSON

Vulnerability summary

CVE-2026-45960 is a medium (CVSS 5.5) vulnerability in linux. EPSS estimates a 0.12% chance of exploitation in the next 30 days, higher than 1.8% 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
0.12%
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 26 · Related 26
SUSE-SU-2026:2914-1USN-8492-1USN-8492-2USN-8492-3USN-8492-4USN-8492-5

Timeline

  1. 27-05-2026
    PublishedVulnerability first disclosed.

Description

In the Linux kernel, the following vulnerability has been resolved: hfsplus: return error when node already exists in hfs_bnode_create When hfs_bnode_create() finds that a node is already hashed (which should not happen in normal operation), it currently returns the existing node without incrementing its reference count. This causes a reference count inconsistency that leads to a kernel panic when the node is later freed in hfs_bnode_put(): kernel BUG at fs/hfsplus/bnode.c:676! BUG_ON(!atomic_read(&node->refcnt)) This scenario can occur when hfs_bmap_alloc() attempts to allocate a node that is already in use (e.g., when node 0's bitmap bit is incorrectly unset), or due to filesystem corruption. Returning an existing node from a create path is not normal operation. Fix this by returning ERR_PTR(-EEXIST) instead of the node when it's already hashed. This properly signals the error condition to callers, which already check for IS_ERR() return values.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.12%

Chance of exploitation in the next 30 days

Percentile

2%

Versus all other CVEs

30-day change

0.00 pp

From 0.12% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.12%

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

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≥ 634725a92938b0f282b17cec0b007dca77adebd2, < 1ca428769cb4737a25bd32fb4d1573cc09eeaeef | ≥ 634725a92938b0f282b17cec0b007dca77adebd2, < 507a1de58c21c95ad7c44afccaf1222d1c42246b | ≥ 634725a92938b0f282b17cec0b007dca77adebd2, < 986455135b95f32c1f142068e451098fc751749e | ≥ 634725a92938b0f282b17cec0b007dca77adebd2, < 7b57ada854b32310f224abd61bcfec2d5790ff0a | ≥ 634725a92938b0f282b17cec0b007dca77adebd2, < 51838112d9c22502333c3085ca0c0d691e7093c6 | ≥ 634725a92938b0f282b17cec0b007dca77adebd2, < 2e6ff6a6fc69cc17ed10c9cb6242935d52acd52d | ≥ 634725a92938b0f282b17cec0b007dca77adebd2, < 2e9185a42e0e237c74435fd092b7c34537c62156 | ≥ 634725a92938b0f282b17cec0b007dca77adebd2, < d8a73cc46c8462a969a7516131feb3096f4c49d3 | 2.6.16
  • linux_kernel≥ 2.6.16.1, < 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 | 2.6.16 | 2.6.16:rc2 | 2.6.16:rc3 | 2.6.16:rc4 | 2.6.16:rc5 | 2.6.16:rc6
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