CVE-2019-19818

Name: CVE-2019-19818
Creator: NVD / NIST
Published: 2019-12-16T21:15:11.623+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 1.22%

Last modified Jun 17, 2026

CVE-2019-19818 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. The JBIG2Decode library in npdf.dll in Nitro Free PDF Reader 12.0.0.112 has a CAPPDAnnotHandlerUtils::PDAnnotHandlerDestroyData2+0xa08a Out-of-Bounds Read via crafted Unicode content.. EPSS estimates a 1.22% chance of exploitation in the next 30 days.

Description

The JBIG2Decode library in npdf.dll in Nitro Free PDF Reader 12.0.0.112 has a CAPPDAnnotHandlerUtils::PDAnnotHandlerDestroyData2+0xa08a Out-of-Bounds Read via crafted Unicode content.

Metrics

CVSS 3.1

5.5/10

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

EPSS Probability

1.22%

64.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-125

Affected Software

Vendor	Product	Versions
Gonitro	Nitro Free Pdf Reader	12.0.0.112

References

https://github.com/nafiez/nafiez.github.io/blob/master/_posts/2019-12-12-multiple-nitro-pdf-vulnerability.mdExploit, Third Party Advisory
https://nafiez.github.io/security/vulnerability/remote/2019/12/12/multiple-nitro-pdf-vulnerability.htmlExploit, Third Party Advisory
https://github.com/nafiez/nafiez.github.io/blob/master/_posts/2019-12-12-multiple-nitro-pdf-vulnerability.mdExploit, Third Party Advisory
https://nafiez.github.io/security/vulnerability/remote/2019/12/12/multiple-nitro-pdf-vulnerability.htmlExploit, Third Party Advisory

Timeline

Published: Dec 16, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-19818?

The JBIG2Decode library in npdf.dll in Nitro Free PDF Reader 12.0.0.112 has a CAPPDAnnotHandlerUtils::PDAnnotHandlerDestroyData2+0xa08a Out-of-Bounds Read via crafted Unicode content.

How severe is CVE-2019-19818?

CVE-2019-19818 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 1.22% probability of exploitation in the next 30 days.

How do I fix CVE-2019-19818?

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-2019-19818?

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

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Source: NVD / NIST