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NVD / CVE Program· CNA Linux

CVE-2023-53422: wifi: iwlwifi: fw: fix memory leak in debugfs

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: 0.16% (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 37f64bc8e001f216566d17ef9fd5608c762ebcd4, 3d90d2f4a018fe8cfd65068bc6350b6222be4852, 89496d6cff297c88fe0286a440c380ceb172da2b.

Low priority for now. Upgrade to Linux Linux 37f64bc8e001f216566d17ef9fd5608c762ebcd4, 3d90d2f4a018fe8cfd65068bc6350b6222be4852, 89496d6cff297c88fe0286a440c380ceb172da2b 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: wifi: iwlwifi: fw: fix memory leak in debugfs Fix a memory leak that occurs when reading the fw_info file all the way, since we return NULL indicating no more data, but don't free the status tracking object.

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
Sep 18, 2025
Updated
Jun 17, 2026
EPSS
0.1% · 5th 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%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

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-2023-53422

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 kernel5.8 and later · before 5.10.180
  • linux linux kernel5.11 and later · before 5.15.111
  • linux linux kernel5.16 and later · before 6.1.28
  • linux linux kernel6.2 and later · before 6.2.15
  • linux linux kernel6.3 and later · before 6.3.2

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

    • 5.8affected
    • 36dfe9ac6e8b8fc2e25733d003a867a40db791da and later · before 89496d6cff297c88fe0286a440c380ceb172da2baffected · git
    • 36dfe9ac6e8b8fc2e25733d003a867a40db791da and later · before e302e9ca14a86a80eadfb24a34d8675aadaf3ef3affected · git
    • 36dfe9ac6e8b8fc2e25733d003a867a40db791da and later · before 37f64bc8e001f216566d17ef9fd5608c762ebcd4affected · git
    • 36dfe9ac6e8b8fc2e25733d003a867a40db791da and later · before fe17124282da055cb2e53f0131521459b5c7866caffected · git
    • 36dfe9ac6e8b8fc2e25733d003a867a40db791da and later · before b830ba20b43be52eae7d4087b61a0079dec56820affected · git
    • 36dfe9ac6e8b8fc2e25733d003a867a40db791da and later · before 3d90d2f4a018fe8cfd65068bc6350b6222be4852affected · git
    • before 5.8not affected · semver
    • 5.10.180 and later · up to and including 5.10.*not affected · semver
    • 5.15.111 and later · up to and including 5.15.*not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.37-16.1.37-1
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-2023-53420Sep 18, 2025 · ntfs: Fix panic about slab-out-of-bounds caused by ntfs_listxattr()
    28Monitor
  • ← EarlierCVE-2023-53421Sep 18, 2025 · blk-cgroup: Reinit blkg_iostat_set after clearing in blkcg_reset_stats()
    22Monitor
  • Later →CVE-2023-53423Sep 18, 2025 · objtool: Fix memory leak in create_static_call_sections()
    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 Linux37f64bc8e001f216566d17ef9fd5608c762ebcd4Vendor (CNA)
Linux Linux3d90d2f4a018fe8cfd65068bc6350b6222be4852Vendor (CNA)
Linux Linux89496d6cff297c88fe0286a440c380ceb172da2bVendor (CNA)
Linux Linuxb830ba20b43be52eae7d4087b61a0079dec56820Vendor (CNA)
Linux Linuxe302e9ca14a86a80eadfb24a34d8675aadaf3ef3Vendor (CNA)
Linux Linuxfe17124282da055cb2e53f0131521459b5c7866cVendor (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.

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 (5 more)

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

All records