CVE-2019-19943

Quick \'N Easy Web Server vulnerability

CVSS

7.5

EPSS

4.3%

EPSS pct

90th

Exploited

No known

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.

Affected vendor

Pablosoftwaresolutions

Affected product

Quick \'N Easy Web Server

CVSS vector

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

Weakness type (CWE)

CWE-415 — Double Free
CWE-787 — Out-of-bounds Write

Published

2020-02-28

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to availability.

Its EPSS score of 4.3% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 90% of all scored CVEs.

Check your external exposure to CVE-2019-19943

Confirm whether Pablosoftwaresolutions Quick \'N Easy Web Server is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2019-19943.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2019-19943

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2019-19943 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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