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NVD / CVE Program· CNA Linux

CVE-2023-54266: media: dvb-usb: m920x: Fix a potential memory leak in m920x_i2c_xfer()

Noroxi assessment

Priority: Monitor (action score 0/100)

  • 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: 0.23% (FIRST EPSS).
  • Fixed version: Linux Linux 2b6e20ef0585a467c24c7e4fde28518e5b33225a, 2cc9f11aeae2887a4db25c27323fc445f4b49e86, 4.10.

Low priority for now. Upgrade to Linux Linux 2b6e20ef0585a467c24c7e4fde28518e5b33225a, 2cc9f11aeae2887a4db25c27323fc445f4b49e86, 4.10 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: media: dvb-usb: m920x: Fix a potential memory leak in m920x_i2c_xfer() 'read' is freed when it is known to be NULL, but not when a read error occurs. Revert the logic to avoid a small leak, should a m920x_read() call fail.

—No exploit Fix available
Published
Dec 30, 2025
Updated
Jun 17, 2026
EPSS
0.2% · 14th percentile
CWE
—

Report tools

JSON

Action score

0

Monitor

Low priority for now.

CVSS
0 / 40 · —
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.2%

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  • No public exploit code on record
  • A fix has been released

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Noroxi analysis

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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.

—

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

    • 08cb4f0da9926277101d18d817048e1328ac2563, 273cac7a89712ba6b898214af150b71dc33abe0c, b7e221dc8f23727e00a7fb6709b3318547a7c4d8, 5.17affected
    • 82ce3084892c0c0e006ec61f6144f2cc4e5ece88 and later · before 809623fedc31f4e74039d93bb75a8993635d7534affected · git
    • 7dca4428d7eb33c89979e620228fe557593fde66 and later · before c0178e938f110cdf6937f26975c0c951dbb1d9dbaffected · git
    • fe791612afabaeee9b911bd7b955985bcf5ff314 and later · before 75d6ef197c488cd852493b4a419274e3489da79daffected · git
    • 830e5d1b4344c2575020ee4bdf63fb48e2b56ce3 and later · before d13a84874a2e0236c9325b3adc8e126d0888ad6baffected · git
    • 0c044e39d52abfbb4cb43dbc5a09c1dc1ed24648 and later · before 7ca7cd02114ac8caa6b0a64734b9af6be1559353affected · git
    • a2ab06d7c4d6bfd0b545a768247a70463e977e27 and later · before 2b6e20ef0585a467c24c7e4fde28518e5b33225aaffected · git
    • a2ab06d7c4d6bfd0b545a768247a70463e977e27 and later · before 4feed3dfca722c6d74865a37cab853c58e6aa190affected · git
    • a2ab06d7c4d6bfd0b545a768247a70463e977e27 and later · before 2cc9f11aeae2887a4db25c27323fc445f4b49e86affected · git
    • a2ab06d7c4d6bfd0b545a768247a70463e977e27 and later · before ea9ef6c2e001c5dc94bee35ebd1c8a98621cf7b8affected · git

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.55-16.1.55-1
Debian:13linuxbefore 6.5.3-16.5.3-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-74705udp: fix potential use-after-free in tunnel segmentation
    40Plan
  • CVE-2026-74612veth: fix skb length accounting after XDP frag adjustment
    40Plan
  • CVE-2026-74475vxlan: use neigh_ha_snapshot() in route_shortcircuit()
    40Plan

Published before and after this one in the same product

  • ← EarlierCVE-2023-54264Dec 30, 2025 · fs/sysv: Null check to prevent null-ptr-deref bug
    0Monitor
  • ← EarlierCVE-2023-54265Dec 30, 2025 · ipv6: Fix an uninit variable access bug in __ip6_make_skb()
    0Monitor
  • Later →CVE-2023-54267Dec 30, 2025 · powerpc/pseries: Rework lppaca_shared_proc() to avoid DEBUG_PREEMPT
    0Monitor

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 Linux2b6e20ef0585a467c24c7e4fde28518e5b33225aVendor (CNA)
Linux Linux2cc9f11aeae2887a4db25c27323fc445f4b49e86Vendor (CNA)
Linux Linux4.10Vendor (CNA)
Linux Linux4.14.326Vendor (CNA)
Linux Linux4.19.295Vendor (CNA)
Linux Linux4.5Vendor (CNA)
Linux Linux4feed3dfca722c6d74865a37cab853c58e6aa190Vendor (CNA)
Linux Linux5.10.195Vendor (CNA)
Linux Linux5.15.132Vendor (CNA)
Linux Linux5.17Vendor (CNA)
Linux Linux5.4.257Vendor (CNA)
Linux Linux75d6ef197c488cd852493b4a419274e3489da79dVendor (CNA)
Linux Linux7ca7cd02114ac8caa6b0a64734b9af6be1559353Vendor (CNA)
Linux Linux809623fedc31f4e74039d93bb75a8993635d7534Vendor (CNA)
Linux Linuxc0178e938f110cdf6937f26975c0c951dbb1d9dbVendor (CNA)
Linux Linuxd13a84874a2e0236c9325b3adc8e126d0888ad6bVendor (CNA)
Linux Linuxea9ef6c2e001c5dc94bee35ebd1c8a98621cf7b8Vendor (CNA)
debian:linux6.1.55-1 · 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

No CVSS vector for this record, so attack conditions can't be derived.

Weakness class (CWE)

—

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✗ → ✓

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References

Show all references (8 more)

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

All records