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Fencer Vulns
medium 4.4

CVE-2023-0907 json

Filseclab Twister Antivirus IoControlCode ffsmon.sys 0x220017 denial of service

published 2023-02-18 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-12895

cvss
4.4
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 12%
public exploits
0
none known

Summary

A vulnerability, which was classified as problematic, has been found in Filseclab Twister Antivirus 8.17. Affected by this issue is the function 0x220017 in the library ffsmon.sys of the component IoControlCode Handler. The manipulation leads to denial of service. An attack has to be approached locally. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-221456.

Exploit prediction

0.22% chance of exploitation in the next 30 days, higher than 12% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/zeze-zeze/WindowsKernelVuln/tree/master/CVE-2023-0907 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 4.4 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
CNA 3.0 4.4 CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
CNA 2.0 4.3 AV:L/AC:L/Au:M/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

  • Filseclab Twister Antivirus

Classification

Weakness
  • CWE-404 Improper Resource Shutdown or Release

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.