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NVD / CVE Program· CNA Linux

CVE-2025-37983: qibfs: fix _another_ leak

Noroxi assessment

Priority: Monitor (action score 22/100)

  • 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: 0.19% (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 24faa6ea274a2b96d0a78a0996c3137c2b2a65f0, 3c2fde33e3e505dfd1a895d1f24bad650c655e14, 47ab2caba495c1d6a899d284e541a8df656dcfe9.

Low priority for now. Upgrade to Linux Linux 24faa6ea274a2b96d0a78a0996c3137c2b2a65f0, 3c2fde33e3e505dfd1a895d1f24bad650c655e14, 47ab2caba495c1d6a899d284e541a8df656dcfe9 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: qibfs: fix _another_ leak failure to allocate inode => leaked dentry... this one had been there since the initial merge; to be fair, if we are that far OOM, the odds of failing at that particular allocation are low...

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
May 20, 2025
Updated
Jun 17, 2026
EPSS
0.1% · 9th percentile

Report tools

JSON

Action score

22

Monitor

Low priority for now.

CVSS
22 / 40 · 5.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.1%

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-2025-37983

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 5.10.237
  • linux linux kernel5.11 and later · before 5.15.181
  • linux linux kernel5.16 and later · before 6.1.136
  • linux linux kernelbefore 5.4.293
  • linux linux kernel6.7 and later · before 6.12.26
  • linux linux kernel6.13 and later · before 6.14.5
  • linux linux kernel6.2 and later · before 6.6.89

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

    • 2.6.35affected
    • f931551bafe1f10ded7f5282e2aa162c267a2e5d and later · before 5e280cce3a29b7fe7b828c6ccd5aa5ba87ceb6b6affected · git
    • f931551bafe1f10ded7f5282e2aa162c267a2e5d and later · before 3c2fde33e3e505dfd1a895d1f24bad650c655e14affected · git
    • f931551bafe1f10ded7f5282e2aa162c267a2e5d and later · before 5fe708c5e3c8b2152c6caaa67243e431a5d6cca3affected · git
    • f931551bafe1f10ded7f5282e2aa162c267a2e5d and later · before 545defa656568c74590317cd30068f85134a8216affected · git
    • f931551bafe1f10ded7f5282e2aa162c267a2e5d and later · before 5d53e88d8370b9ab14dd830abb410d9a2671edb6affected · git
    • f931551bafe1f10ded7f5282e2aa162c267a2e5d and later · before 47ab2caba495c1d6a899d284e541a8df656dcfe9affected · git
    • f931551bafe1f10ded7f5282e2aa162c267a2e5d and later · before 24faa6ea274a2b96d0a78a0996c3137c2b2a65f0affected · git
    • f931551bafe1f10ded7f5282e2aa162c267a2e5d and later · before bdb43af4fdb39f844ede401bdb1258f67a580a27affected · git
    • before 2.6.35not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.137-16.1.137-1
Debian:13linuxbefore 6.12.27-16.12.27-1

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-2025-37979May 20, 2025 · ASoC: qcom: Fix sc7280 lpass potential buffer overflow
    31Monitor
  • ← EarlierCVE-2025-37982May 20, 2025 · wifi: wl1251: fix memory leak in wl1251_tx_work
    22Monitor
  • Later →CVE-2025-37987May 20, 2025 · pds_core: Prevent possible adminq overflow/stuck condition
    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 Linux24faa6ea274a2b96d0a78a0996c3137c2b2a65f0Vendor (CNA)
Linux Linux3c2fde33e3e505dfd1a895d1f24bad650c655e14Vendor (CNA)
Linux Linux47ab2caba495c1d6a899d284e541a8df656dcfe9Vendor (CNA)
Linux Linux545defa656568c74590317cd30068f85134a8216Vendor (CNA)
Linux Linux5d53e88d8370b9ab14dd830abb410d9a2671edb6Vendor (CNA)
Linux Linux5e280cce3a29b7fe7b828c6ccd5aa5ba87ceb6b6Vendor (CNA)
Linux Linux5fe708c5e3c8b2152c6caaa67243e431a5d6cca3Vendor (CNA)
Linux Linuxbdb43af4fdb39f844ede401bdb1258f67a580a27Vendor (CNA)
debian:linux6.1.137-1 · 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
none
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
None
Integrity impact
None
Availability impact
High

Weakness class (CWE)

CWE-401 · Missing Release of Memory after Effective Lifetime

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/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.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

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