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NVD / CVE Program· CNA Linux

CVE-2025-38715: hfs: fix slab-out-of-bounds in hfs_bnode_read()

Noroxi assessment

Priority: Monitor (action score 28/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.17% (FIRST EPSS).
  • Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: Linux Linux 384a66b89f9540a9a8cb0f48807697dfabaece4c, 67ecc81f6492275c9c54280532f558483c99c90e, a1a60e79502279f996e55052f50cc14919020475.

Low priority for now. Upgrade to Linux Linux 384a66b89f9540a9a8cb0f48807697dfabaece4c, 67ecc81f6492275c9c54280532f558483c99c90e, a1a60e79502279f996e55052f50cc14919020475 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

In the Linux kernel, the following vulnerability has been resolved: hfs: fix slab-out-of-bounds in hfs_bnode_read() This patch introduces is_bnode_offset_valid() method that checks the requested offset value. Also, it introduces check_and_correct_requested_length() method that checks and correct the requested length (if it is necessary). These methods are used in hfs_bnode_read(), hfs_bnode_write(), hfs_bnode_clear(), hfs_bnode_copy(), and hfs_bnode_move() with the goal to prevent the access out of allocated memory and triggering the crash.

HighCVSS 7.1 · v3.1—No exploit Fix available
Published
Sep 4, 2025
Updated
Oct 19, 2026
EPSS
0.1% · 7th percentile

Report tools

JSON

Action score

28

Monitor

Low priority for now.

CVSS
28 / 40 · 7.1 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.1%

CNA vs NVD score

NVD
7.1
CNA · Linux
7.8
0.7 point gap

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2025-38715

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
linuxlinux kernel
debiandebian linux

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • debian debian linux11.0
  • linux linux kernel5.5 and later · before 5.10.241
  • linux linux kernel5.11 and later · before 5.15.190
  • linux linux kernel5.16 and later · before 6.1.149
  • linux linux kernel6.2 and later · before 6.6.103
  • linux linux kernel2.6.12.1 and later · before 5.4.297
  • linux linux kernel6.13 and later · before 6.15.11
  • linux linux kernel6.16 and later · before 6.16.2
  • linux linux kernel6.7 and later · before 6.12.43
  • linux linux kernel2.6.12

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.

  • Linux Linux

    • 2.6.12affected
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before e7d2dc2421e821e4045775e6dc226378328de6f6affected · git
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before 67ecc81f6492275c9c54280532f558483c99c90eaffected · git
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before a1a60e79502279f996e55052f50cc14919020475affected · git
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before fe2891a9c43ab87d1a210d61e6438ca6936e2f62affected · git
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before 384a66b89f9540a9a8cb0f48807697dfabaece4caffected · git
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before efc095b35b23297e419c2ab4fc1ed1a8f0781a29affected · git
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before fc7f732984ec91f30be3e574e0644066d07f2b78affected · git
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before eec522fd0d28106b14a59ab2d658605febe4a3bbaffected · git
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before a431930c9bac518bf99d6b1da526a7f37ddee8d8affected · git

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.153-16.1.153-1
Debian:13linuxbefore 6.12.43-16.12.43-1
Debian:14linuxbefore 6.16.3-16.16.3-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-31431crypto: algif_aead - Revert to operating out-of-placeKEV
    90Now
  • CVE-2022-0847A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe KEV
    89Now
  • CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV
    85Now

Published before and after this one in the same product

  • ← EarlierCVE-2025-38713Sep 4, 2025 · hfsplus: fix slab-out-of-bounds read in hfsplus_uni2asc()
    28Monitor
  • ← EarlierCVE-2025-38714Sep 4, 2025 · hfsplus: fix slab-out-of-bounds in hfsplus_bnode_read()
    28Monitor
  • Later →CVE-2025-38716Sep 4, 2025 · hfs: fix general protection fault in hfs_find_init()
    22Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Linux Linux384a66b89f9540a9a8cb0f48807697dfabaece4cVendor (CNA)
Linux Linux67ecc81f6492275c9c54280532f558483c99c90eVendor (CNA)
Linux Linuxa1a60e79502279f996e55052f50cc14919020475Vendor (CNA)
Linux Linuxa431930c9bac518bf99d6b1da526a7f37ddee8d8Vendor (CNA)
Linux Linuxe7d2dc2421e821e4045775e6dc226378328de6f6Vendor (CNA)
Linux Linuxeec522fd0d28106b14a59ab2d658605febe4a3bbVendor (CNA)
Linux Linuxefc095b35b23297e419c2ab4fc1ed1a8f0781a29Vendor (CNA)
Linux Linuxfc7f732984ec91f30be3e574e0644066d07f2b78Vendor (CNA)
Linux Linuxfe2891a9c43ab87d1a210d61e6438ca6936e2f62Vendor (CNA)
debian:linux6.1.153-1 · Debian:12Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
none
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
None
Availability impact
High

Weakness class (CWE)

CWE-125 · Out-of-bounds Read

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

—

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (11 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records