CVE-2023-1491: A vulnerability was found in Max Secure Anti Virus Plus 19.0.2.1

Routine

MEDIUM 4.4DOWNGRADE

CVE-2023-1491 is a medium-severity flaw (CVSS 4.4) affecting anti virus plus. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	4.4 (Medium)
Attack vector	Local
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.3% (top 77%)
CISA exploited list	No
Weakness	CWE-284
Published	2023-03-18
Last modified	2026-06-17

Publisher (CNA): VulDB · Vendor: maxpcsecure

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2023-03-18 22:15 UTCPublished CVE record published
2026-06-17 05:28 UTCUpdated Record last modified

maxpcsecure anti virus plus DOWNGRADE

Affected: 19.0.2.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 19.0.2.1

1. Check installed version

apt-cache policy anti-virus-plus || rpm -q anti-virus-plus || anti-virus-plus --version

2. No fixed release: DOWNGRADE to a release before 19.0.2.1 (Debian / Ubuntu)

apt-cache madison anti-virus-plus sudo apt install anti-virus-plus=<VERSION_BEFORE_19.0.2.1> sudo apt-mark hold anti-virus-plus

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list anti-virus-plus sudo dnf downgrade anti-virus-plus-<VERSION_BEFORE_19.0.2.1> sudo dnf versionlock add anti-virus-plus

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2023-1491?

anti virus plus: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2023-1491 being exploited?

CVE-2023-1491 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2023-1491 affect?

CVE-2023-1491 affects anti virus plus. Severity is medium (CVSS 4.4). 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 improp

How urgent is CVE-2023-1491?

Priority 26/100. Public exploit reference

Related CVEs

CVE-2023-1493 MEDIUM 5.5 DOWNGRADE A vulnerability was found in Max Secure Anti Virus Plus 19.0.2.1
CVE-2023-1492 MEDIUM 5.5 DOWNGRADE A vulnerability was found in Max Secure Anti Virus Plus 19.0.2.1
CVE-2023-1490 MEDIUM 4.4 DOWNGRADE A vulnerability was found in Max Secure Anti Virus Plus 19.0.2.1 and classified as critical

References

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