CVE-2019-1798

Name: CVE-2019-1798
Creator: NVD / NIST
Published: 2019-04-08T20:29:11.097+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 1.10%

Last modified Jun 17, 2026

CVE-2019-1798 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. A vulnerability in the Portable Executable (PE) file scanning functionality of Clam AntiVirus (ClamAV) Software versions 0.101.1 and prior could allow an unauthenticated, remote attacker to cause a denial of service condition on an affected device. The vulnerability is due to a lack of proper input and validation checking mechanisms for PE files sent an affected device. EPSS estimates a 1.10% chance of exploitation in the next 30 days.

Description

A vulnerability in the Portable Executable (PE) file scanning functionality of Clam AntiVirus (ClamAV) Software versions 0.101.1 and prior could allow an unauthenticated, remote attacker to cause a denial of service condition on an affected device. The vulnerability is due to a lack of proper input and validation checking mechanisms for PE files sent an affected device. An attacker could exploit this vulnerability by sending malformed PE files to the device running an affected version ClamAV Software. An exploit could allow the attacker to cause an out-of-bounds read condition, resulting in a crash that could result in a denial of service condition on an affected device.

Metrics

CVSS 3.1

5.5/10

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

EPSS Probability

1.10%

61.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Clamav	Clamav	<= 0.101.1

References

https://bugzilla.clamav.net/show_bug.cgi?id=12262Exploit, Issue Tracking, Patch, Vendor Advisory
https://security.gentoo.org/glsa/201904-12Third Party Advisory
https://bugzilla.clamav.net/show_bug.cgi?id=12262Exploit, Issue Tracking, Patch, Vendor Advisory
https://security.gentoo.org/glsa/201904-12Third Party Advisory

Timeline

Published: Apr 8, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-1798?

How severe is CVE-2019-1798?

CVE-2019-1798 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 1.10% probability of exploitation in the next 30 days.

How do I fix CVE-2019-1798?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-1798?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST