Skip to content
Fencer Vulns
medium 4.4

CVE-2023-1491 json

Max Secure Anti Virus Plus IoControlCode MaxCryptMon.sys 0x220020 access control

published 2023-03-18 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-23739

cvss
4.4
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 23%
public exploits
0
none known

Summary

A vulnerability was found in Max Secure Anti Virus Plus 19.0.2.1. It has been classified as critical. This affects the function 0x220020 in the library MaxCryptMon.sys of the component IoControlCode Handler. The manipulation leads to improper access controls. Local access is required to approach this attack. The exploit has been disclosed to the public and may be used. The identifier VDB-223377 was assigned to this vulnerability.

Exploit prediction

0.30% chance of exploitation in the next 30 days, higher than 23% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • drive.google.com https://drive.google.com/file/d/1-h-6ijBvucNU-dYglWW5n4l2ys-MDAF9/view referenced PoC, tagged "exploit" by a source, unverified
  • github.com https://github.com/zeze-zeze/WindowsKernelVuln/tree/master/CVE-2023-1491 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:L/UI:N/S:U/C:N/I:L/A:L
CNA 3.0 4.4 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
CNA 2.0 3.2 AV:L/AC:L/Au:S/C:N/I:P/A:P
NVD 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Affected products

  • Max Secure Anti Virus Plus

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.