CVE-2019-5066

Name: CVE-2019-5066
Creator: NVD / NIST
Published: 2019-09-18T21:15:13.187+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 2.38%

Last modified Jun 17, 2026

CVE-2019-5066 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. An exploitable use-after-free vulnerability exists in the way LZW-compressed streams are processed in Aspose.PDF 19.2 for C++. A specially crafted PDF can cause a dangling heap pointer, resulting in a use-after-free condition. EPSS estimates a 2.38% chance of exploitation in the next 30 days.

Description

An exploitable use-after-free vulnerability exists in the way LZW-compressed streams are processed in Aspose.PDF 19.2 for C++. A specially crafted PDF can cause a dangling heap pointer, resulting in a use-after-free condition. To trigger this vulnerability, a specifically crafted PDF document needs to be processed by the target application.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

2.38%

81.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Aspose	Aspose.Pdf For C\+\+	19.2

References

https://www.talosintelligence.com/vulnerability_reports/TALOS-2019-0855Exploit, Third Party Advisory
https://www.talosintelligence.com/vulnerability_reports/TALOS-2019-0855Exploit, Third Party Advisory

Timeline

Published: Sep 18, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-5066?

How severe is CVE-2019-5066?

CVE-2019-5066 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 2.38% probability of exploitation in the next 30 days.

How do I fix CVE-2019-5066?

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-2019-5066?

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

Scan your code now

Source: NVD / NIST