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Fencer Vulns
medium 5.5

CVE-2023-2872 json

FlexiHub IoControlCode fusbhub.sys 0x220088 null pointer dereference

published 2023-05-24 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-34320

cvss
5.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 25%
public exploits
0
none known

Summary

A vulnerability classified as problematic has been found in FlexiHub 5.5.14691.0. This affects the function 0x220088 in the library fusbhub.sys of the component IoControlCode Handler. The manipulation leads to null pointer dereference. An attack has to be approached locally. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-229851. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

Exploit prediction

0.33% chance of exploitation in the next 30 days, higher than 25% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • drive.google.com https://drive.google.com/file/d/1h-7fnmb31bkEW4FoLNDlneftDqS4TQHT/view?usp=sharing referenced PoC, tagged "exploit" by a source, unverified
  • github.com https://github.com/zeze-zeze/WindowsKernelVuln/blob/master/CVE-2023-2872 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CNA 3.0 5.5 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CNA 2.0 4.6 AV:L/AC:L/Au:S/C:N/I:N/A:C
NVD 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected products

  • n/a FlexiHub

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.