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NVD / CVE Program· CNA Linux

CVE-2023-53683: fs: hfsplus: remove WARN_ON() from hfsplus_cat_{read,write}_inode()

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: 0.15% (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 37cab61a52d6f42b2d961c51bcf369f09e235fb5, 3a9d68d84b2e41ba3f2a727b36f035fad6800492, 4.14.316.
  • Severity is disputed: the assigning authority (CNA) scores it 7.8, NVD 5.5.

Low priority for now. Upgrade to Linux Linux 37cab61a52d6f42b2d961c51bcf369f09e235fb5, 3a9d68d84b2e41ba3f2a727b36f035fad6800492, 4.14.316 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: fs: hfsplus: remove WARN_ON() from hfsplus_cat_{read,write}_inode() syzbot is hitting WARN_ON() in hfsplus_cat_{read,write}_inode(), for crafted filesystem image can contain bogus length. There conditions are not kernel bugs that can justify kernel to panic.

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
Oct 7, 2025
Updated
Oct 28, 2026
EPSS
0.1% · 4th 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%

CNA vs NVD score

NVD
5.5
CNA · Linux
7.8
2.3 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-2023-53683

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

Affected versions

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

  • linux linux kernel4.14.303 and later · before 4.14.316
  • linux linux kernel4.19.270 and later · before 4.19.284
  • linux linux kernel5.4.229 and later · before 5.4.244
  • linux linux kernel5.10.163 and later · before 5.10.181
  • linux linux kernel5.15.87 and later · before 5.15.113
  • linux linux kernel5.16 and later · before 6.1.30
  • linux linux kernel6.2 and later · before 6.3.4

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

    • 5.16affected
    • f62f5ee63052324ad94dd05091743d9e09f72070 and later · before 61af77acd039ffd221bf7adf0dc95d0a4d377505affected · git
    • ab778439c6fa0071698b62a351f79d319fd72c53 and later · before c074913b12db3632b11588b31bbfb0fa80a0a1c9affected · git
    • 781fa141414ef18b52f15037497155f80bf0ecab and later · before a75d9211a07fed513c08c5d4861c4a36ac6a74feaffected · git
    • 1f881d9201f6e0a917004a14329f9ff3d0bfa1e5 and later · before c8daee66585897a4c90d937c91e762100237bff9affected · git
    • 48d9e2e6de01ed35e965eb549758a837c07b601d and later · before 37cab61a52d6f42b2d961c51bcf369f09e235fb5affected · git
    • 55d1cbbbb29e6656c662ee8f73ba1fc4777532eb and later · before 48960a503fcec76d3f72347b7e679dda08ca43beaffected · git
    • 55d1cbbbb29e6656c662ee8f73ba1fc4777532eb and later · before 3a9d68d84b2e41ba3f2a727b36f035fad6800492affected · git
    • 55d1cbbbb29e6656c662ee8f73ba1fc4777532eb and later · before 81b21c0f0138ff5a499eafc3eb0578ad2a99622caffected · git
    • 4.14.303 and later · before 4.14.316affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.37-16.1.37-1
Debian:13linuxbefore 6.3.7-16.3.7-1

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-2023-53681Oct 7, 2025 · bcache: Fix __bch_btree_node_alloc to make the failure behavior consistent
    22Monitor
  • ← EarlierCVE-2023-53682Oct 7, 2025 · hwmon: (xgene) Fix ioremap and memremap leak
    22Monitor
  • Later →CVE-2023-53684Oct 7, 2025 · xfrm: Zero padding when dumping algos and encap
    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 Linux37cab61a52d6f42b2d961c51bcf369f09e235fb5Vendor (CNA)
Linux Linux3a9d68d84b2e41ba3f2a727b36f035fad6800492Vendor (CNA)
Linux Linux4.14.316Vendor (CNA)
Linux Linux4.19.284Vendor (CNA)
Linux Linux48960a503fcec76d3f72347b7e679dda08ca43beVendor (CNA)
Linux Linux5.10.181Vendor (CNA)
Linux Linux5.15.113Vendor (CNA)
Linux Linux5.4.244Vendor (CNA)
Linux Linux61af77acd039ffd221bf7adf0dc95d0a4d377505Vendor (CNA)
Linux Linux81b21c0f0138ff5a499eafc3eb0578ad2a99622cVendor (CNA)
Linux Linuxa75d9211a07fed513c08c5d4861c4a36ac6a74feVendor (CNA)
Linux Linuxc074913b12db3632b11588b31bbfb0fa80a0a1c9Vendor (CNA)
Linux Linuxc8daee66585897a4c90d937c91e762100237bff9Vendor (CNA)
debian:linux6.1.37-1 · 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.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

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.

  • CVE-2026-31739206 days apartcrypto: tegra - Add missing CRYPTO_ALG_ASYNC
    35Monitor
  • CVE-2026-52952260 days apartiommu: Fix WARN_ON in __iommu_group_set_domain_nofail() due to reset
    35Monitor
  • CVE-2025-3980322 days apartscsi: ufs: core: Remove WARN_ON_ONCE() call from ufshcd_uic_cmd_compl()
    31Monitor
  • CVE-2026-31398178 days apartmm/rmap: fix incorrect pte restoration for lazyfree folios
    31Monitor
  • CVE-2026-46117233 days apartRDMA/mana: Remove user triggerable WARN_ON() in mana_ib_create_qp_rss()
    31Monitor
  • CVE-2026-46027232 days apartnet/smc: avoid early lgr access in smc_clc_wait_msg
    30Monitor

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-617 · Reachable Assertion

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 (7 more)

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

All records