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Fencer Vulns
medium 5.5

CVE-2023-0908 json

Xoslab Easy File Locker xlkfs.sys MessageNotifyCallback denial of service

published 2023-02-18 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-12896

cvss
5.5
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 13%
public exploits
0
none known

Summary

A vulnerability, which was classified as problematic, was found in Xoslab Easy File Locker 2.2.0.184. This affects the function MessageNotifyCallback in the library xlkfs.sys. The manipulation leads to denial of service. Local access is required to approach this attack. The exploit has been disclosed to the public and may be used. The identifier VDB-221457 was assigned to this vulnerability.

Exploit prediction

0.23% chance of exploitation in the next 30 days, higher than 13% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/zeze-zeze/WindowsKernelVuln/tree/master/CVE-2023-0908 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 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

  • Xoslab Easy File Locker

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.