CVE-2019-19943

Name: CVE-2019-19943
Creator: NVD / NIST
Published: 2020-02-28T20:15:11.46+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 4.26%

Last modified Jun 17, 2026

CVE-2019-19943 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. The HTTP service in quickweb.exe in Pablo Quick 'n Easy Web Server 3.3.8 allows Remote Unauthenticated Heap Memory Corruption via a large host or domain parameter. It may be possible to achieve remote code execution because of a double free.. EPSS estimates a 4.26% chance of exploitation in the next 30 days.

Description

The HTTP service in quickweb.exe in Pablo Quick 'n Easy Web Server 3.3.8 allows Remote Unauthenticated Heap Memory Corruption via a large host or domain parameter. It may be possible to achieve remote code execution because of a double free.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

4.26%

89.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Pablosoftwaresolutions	Quick \'N Easy Web Server	<= 3.3.8

References

https://www.exploit-db.com/exploits/48111Exploit, Third Party Advisory, VDB Entry
https://www.exploit-db.com/exploits/48111Exploit, Third Party Advisory, VDB Entry

Timeline

Published: Feb 28, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-19943?

How severe is CVE-2019-19943?

CVE-2019-19943 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 4.26% probability of exploitation in the next 30 days.

How do I fix CVE-2019-19943?

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-2019-19943?

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

Scan your code now

Source: NVD / NIST