CVE Intelligence
Unknown

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

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.

Published Dec 30, 2025 · Updated Oct 13, 2026 · Sources: NIST National Vulnerability Database, CVE Program (cve.org) e CISA ADP · CNA: Linux

Who exploits it and how urgent it is

A 0–100 score combining confirmed exploitation, ransomware and APT use, public exploits, EPSS and severity.

No exploitation signal in the sources consulted so far.
How the score was calculated
  • EPSS 0.2% (30-day exploitation probability)+2

The score orders the patch queue; it does not replace your asset context (internet exposure, criticality, compensating controls).

Triage

Is it exploited, how likely is exploitation, what does it touch, and how severe do the sources call it.

Exploitation
Not confirmed
Not in CISA KEV — an absence of record, not proof it is unexploited.
EPSS FIRST
0.23%
ahead of 13% of scored CVEs · Oct 14, 2026
Affects
Linux
Linux
CVSS base
—
Score not published yet.

Remediation

Fixes and mitigations documented by the sources — linked to the original advisory.

No fix documented by the sources we poll. That does not mean none exists: check the vendor advisory.

First 24 hours

Ordered from the record’s own fields — exposure first, because you cannot patch what you have not found. A rule-generated starting point.

  1. Identify exposed assets running the affected vendor/product/version combinations (Linux Linux).
  2. No fix documented in the sources: reduce exposure and monitor the vendor advisory.
  3. Search available logs for exploit probes, errors and authentication anomalies.

Affected scope

Vendor, product and versions as the sources word them.

VendorProductVersionsStatusSource
Linux Linux version 273cac7a89712ba6b898214af150b71dc33abe0cversion 5.17≥ 5.16.3 and < 5.17≥ 4.9.298 and < 4.10≥ 4.4.300 and < 4.5≥ 5.15.17 and < 5.15.132≥ 5.10.94 and < 5.10.195≥ 5.4.174 and < 5.4.257
and 13 more ≥ 4.19.226 and < 4.19.295≥ 4.14.263 and < 4.14.326version b7e221dc8f23727e00a7fb6709b3318547a7c4d8≥ 82ce3084892c0c0e006ec61f6144f2cc4e5ece88 and < 809623fedc31f4e74039d93bb75a8993635d7534version 08cb4f0da9926277101d18d817048e1328ac2563≥ a2ab06d7c4d6bfd0b545a768247a70463e977e27 and < ea9ef6c2e001c5dc94bee35ebd1c8a98621cf7b8≥ a2ab06d7c4d6bfd0b545a768247a70463e977e27 and < 2cc9f11aeae2887a4db25c27323fc445f4b49e86≥ a2ab06d7c4d6bfd0b545a768247a70463e977e27 and < 4feed3dfca722c6d74865a37cab853c58e6aa190≥ a2ab06d7c4d6bfd0b545a768247a70463e977e27 and < 2b6e20ef0585a467c24c7e4fde28518e5b33225a≥ 0c044e39d52abfbb4cb43dbc5a09c1dc1ed24648 and < 7ca7cd02114ac8caa6b0a64734b9af6be1559353≥ 830e5d1b4344c2575020ee4bdf63fb48e2b56ce3 and < d13a84874a2e0236c9325b3adc8e126d0888ad6b≥ fe791612afabaeee9b911bd7b955985bcf5ff314 and < 75d6ef197c488cd852493b4a419274e3489da79d≥ 7dca4428d7eb33c89979e620228fe557593fde66 and < c0178e938f110cdf6937f26975c0c951dbb1d9db
Vulnerable CVE Program (cve.org) e CISA ADP

EPSS over time FIRST

Oct 13, 2026 → Oct 14, 2026 · 2 reading(s) · max 0.23%

Detection

Read off the CVSS vector and the weakness class. Starting points, not tested rules.

  • Not enough vector or weakness data: use the affected application’s logs as a starting point.
application logs

Timeline

What happened to this CVE, newest first.

  • 2026
  • Record published
    Oct 13, 2026
  • Affected products added · linux/linux
    Oct 13, 2026 · CVE Program (cve.org) e CISA ADP
  • Source status changed · → Deferred
    Oct 13, 2026 · NIST National Vulnerability Database
  • Record created in this database
    Oct 13, 2026 · NIST National Vulnerability Database
  • 2025
  • CVE published
    Dec 30, 2025 · Linux

Source activity

Repeated readings are counted rather than listed.

  • 1× Official description updated · Oct 13, 2026 – Oct 13, 2026

References

9 on the record

Elsewhere on this site

Linux
every CVE for this vendor

Related CVEs (same products)

  • CVE-2026-99999 ipv4: validate checksum_start before completing checksum 13h
  • CVE-2026-98432 ipv4: free inet_opt and ireq_opt after an RCU grace period 13h
  • CVE-2026-98424 wifi: cfg80211: undo netns switch if renaming the wiphy fails 1d
  • CVE-2026-98425 wifi: mac80211: don't warn when an IBSS has no channel to scan 1d
  • CVE-2026-98426 wifi: mwifiex: fix IRQ leak using wrong index in MSI-X error path 1d
  • CVE-2026-98427 net/sched: codel: bound the dropping loop per dequeue call 1d

Not in any source we poll

Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.

  • No CVSS score published by NVD, the CNA, CISA or GitHub so far.
  • No fixed version, patch or mitigation documented.
  • No CISA SSVC assessment.
  • No CWE classification.
  • No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
  • No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
  • No exploit packet captures, log samples, or incident case IDs supplied.

Answered from this record

Text assembled only from the fields above — no additional claims.

What should defenders know first?

CVE-2023-54266 is "media: dvb-usb: m920x: Fix a potential memory leak in m920x_i2c_xfer()", rated Unknown. It affects Linux (Linux); versions are in the scope table. It is not in CISA KEV, which does not rule out exploitation. EPSS 0.23% estimates the probability of exploitation in 30 days; neither replaces your asset context. First verify whether exposed or business-critical assets run the affected versions, apply vendor fixes or mitigations, and preserve logs for review.

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