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NVD / CVE Program· CNA Linux

CVE-2025-38204: jfs: fix array-index-out-of-bounds read in add_missing_indices

HighCVSS 7.1 · v3.1—No exploit Fix available

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: 0.24% (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 2ec34dc7094b14149ce091c77aff43a45d255518, 44618bee303bed151ef3a525ff79fbd7689593b5, 5730e2da0655336fed6aa3c25892e69e2ba5cb76.

Low priority for now. Upgrade to Linux Linux 2ec34dc7094b14149ce091c77aff43a45d255518, 44618bee303bed151ef3a525ff79fbd7689593b5, 5730e2da0655336fed6aa3c25892e69e2ba5cb76 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: jfs: fix array-index-out-of-bounds read in add_missing_indices stbl is s8 but it must contain offsets into slot which can go from 0 to 127. Added a bound check for that error and return -EIO if the check fails. Also make jfs_readdir return with error if add_missing_indices returns with an error.

Published
Jul 4, 2025
Updated
Oct 30, 2026
EPSS
0.2% · 15th 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 · 0.2%

CNA vs NVD score

NVD
7.1
CNA · Linux
7.8
0.7 point gap

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/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.

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When you'll hear from us

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  • 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 kernelbefore 5.4.295
  • linux linux kernel5.5 and later · before 5.10.239
  • linux linux kernel5.11 and later · before 5.15.186
  • linux linux kernel5.16 and later · before 6.15.4

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 81af4b34fd72d390d7f237c6a545cc6d09707956affected · git
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before bfa4655d28f338e68d345aed80d19be7999bbce2affected · git
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before 44618bee303bed151ef3a525ff79fbd7689593b5affected · git
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before 5730e2da0655336fed6aa3c25892e69e2ba5cb76affected · git
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before c8733634978086b41255695d993cec3017a23a27affected · git
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before 2ec34dc7094b14149ce091c77aff43a45d255518affected · git
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before c8399564a58fb6ea2ff21a6fd278417943cb51a5affected · git
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before 5dff41a86377563f7a2b968aae00d25b4ceb37c9affected · git
    • before 2.6.12not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxfrom 0—
Debian:12linux-6.12before 6.12.113-1~deb12u16.12.113-1~deb12u1
Debian:13linuxbefore 6.12.113-16.12.113-1
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-2025-38201Jul 4, 2025 · netfilter: nft_set_pipapo: clamp maximum map bucket size to INT_MAX
    31Monitor
  • ← EarlierCVE-2025-38202Jul 4, 2025 · bpf: Check rcu_read_lock_trace_held() in bpf_map_lookup_percpu_elem()
    22Monitor
  • Later →CVE-2025-38207Jul 4, 2025 · mm: fix uprobe pte be overwritten when expanding vma
    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 Linux2ec34dc7094b14149ce091c77aff43a45d255518Vendor (CNA)
Linux Linux44618bee303bed151ef3a525ff79fbd7689593b5Vendor (CNA)
Linux Linux5730e2da0655336fed6aa3c25892e69e2ba5cb76Vendor (CNA)
Linux Linux5dff41a86377563f7a2b968aae00d25b4ceb37c9Vendor (CNA)
Linux Linux81af4b34fd72d390d7f237c6a545cc6d09707956Vendor (CNA)
Linux Linuxbfa4655d28f338e68d345aed80d19be7999bbce2Vendor (CNA)
Linux Linuxc8399564a58fb6ea2ff21a6fd278417943cb51a5Vendor (CNA)
Linux Linuxc8733634978086b41255695d993cec3017a23a27Vendor (CNA)
debian:linux6.12.113-1 · Debian:13Package registry (OSV)
debian:linux6.16.3-1 · Debian:14Package registry (OSV)
debian:linux-6.126.12.113-1~deb12u1 · 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 (8 more)

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

All records