How severe is CVE-2019-19943?

CVE-2019-19943 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2019-19943 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-19943?

CVE-2019-19943 affects Pablosoftwaresolutions Quick 'n Easy Web Server. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-19943?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2019-19943 published?

CVE-2019-19943 was published on 2020-02-28 and last updated on 2026-06-17.

CVE-2019-19943

CVE-2019-19943 is a high-severity vulnerability in Pablosoftwaresolutions Quick 'n Easy Web Server with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-415.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 4% (90th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-415
Affected product: Pablosoftwaresolutions Quick 'n Easy Web Server
Published: 2020-02-28
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2019-19943?: 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.
How severe is CVE-2019-19943?: CVE-2019-19943 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2019-19943 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-19943?: CVE-2019-19943 affects Pablosoftwaresolutions Quick 'n Easy Web Server. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-19943?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2019-19943 published?: CVE-2019-19943 was published on 2020-02-28 and last updated on 2026-06-17.

References

https://www.exploit-db.com/exploits/48111

Affected products (1)

cpe:2.3:a:pablosoftwaresolutions:quick_\'n_easy_web_server:*:*:*:*:*:*:*:*

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