HIGH

CVE-2019-19943

CVSS v3

7.5

HIGH

EPSS Score

4.3 %

exploit probability, as of 2026-10-19

CISA KEV

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Neither OSV.dev nor the vendor advisories we read list affected versions for CVE-2019-19943 yet.

Full record on NVD

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.

Technical details

Published: 2020-02-28

Frequently asked questions

What is CVE-2019-19943?

Is CVE-2019-19943 actively exploited?

Active exploitation of CVE-2019-19943 has not been confirmed. Its EPSS score was 4.3% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2019-19943?

CVE-2019-19943 has a CVSS v3 base score of 7.5 (HIGH severity).

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