CVE-2018-19650: Local attackers can trigger a stack-based buffer overflow on vulnerable installations of Antiy-AVL ATool secur

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HIGH 7.8DOWNGRADE

CVE-2018-19650 is a high-severity flaw (CVSS 7.8) affecting anti virus lab atool. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Local attackers can trigger a stack-based buffer overflow on vulnerable installations of Antiy-AVL ATool security management v1.0.0.22. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the processing of IOCTL 0x80002000 by the IRPFile.sys Antiy-AVL ATool kernel driver. The bug is caused by failure to properly validate the length of

Why this priority

High severity
Public exploit reference

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

Risk facts

CVSS score	7.8 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.6% (top 51%)
CISA exploited list	No
Weakness	CWE-787
Published	2018-12-05
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: antiy

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

Am I affected?

Timeline

2018-12-05 22:29 UTCPublished CVE record published
2026-06-17 01:49 UTCUpdated Record last modified

antiy anti virus lab atool DOWNGRADE

Affected: 1.0.0.22

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0.0.22

1. Check installed version

apt-cache policy anti-virus-lab-atool || rpm -q anti-virus-lab-atool || anti-virus-lab-atool --version

2. No fixed release: DOWNGRADE to a release before 1.0.0.22 (Debian / Ubuntu)

apt-cache madison anti-virus-lab-atool sudo apt install anti-virus-lab-atool=<VERSION_BEFORE_1.0.0.22> sudo apt-mark hold anti-virus-lab-atool

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

dnf --showduplicates list anti-virus-lab-atool sudo dnf downgrade anti-virus-lab-atool-<VERSION_BEFORE_1.0.0.22> sudo dnf versionlock add anti-virus-lab-atool

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-2018-19650?

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

Is CVE-2018-19650 being exploited?

CVE-2018-19650 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-2018-19650 affect?

CVE-2018-19650 affects anti virus lab atool. Severity is high (CVSS 7.8). Local attackers can trigger a stack-based buffer overflow on vulnerable installations of Antiy-AVL ATool security management v1.0.0.22. An attacker must first obtain the ability to execute low-privileged code on the target system in order t

How urgent is CVE-2018-19650?

Priority 45/100. High severity; Public exploit reference

Related CVEs

CVE-2018-20331 HIGH 7.8 DOWNGRADE Local attackers can trigger a Kernel Pool Buffer Overflow in Antiy AVL ATool v1.0.0.22

References

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