CVE-2020-23879

Name: CVE-2020-23879
Creator: NVD / NIST
Published: 2021-11-10T22:15:09.783+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 1.36%

Last modified Jun 17, 2026

CVE-2020-23879 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. pdf2json v0.71 was discovered to contain a NULL pointer dereference in the component ObjectStream::getObject.. EPSS estimates a 1.36% chance of exploitation in the next 30 days.

Description

pdf2json v0.71 was discovered to contain a NULL pointer dereference in the component ObjectStream::getObject.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

1.36%

68.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-476

Affected Software

Vendor	Product	Versions
Flowpaper	Pdf2json	0.71

References

https://github.com/Aurorainfinity/Poc/tree/master/pdf2jsonExploit, Third Party Advisory
https://github.com/flexpaper/pdf2json/issues/44Exploit, Third Party Advisory
https://github.com/Aurorainfinity/Poc/tree/master/pdf2jsonExploit, Third Party Advisory
https://github.com/flexpaper/pdf2json/issues/44Exploit, Third Party Advisory

Timeline

Published: Nov 10, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-23879?

pdf2json v0.71 was discovered to contain a NULL pointer dereference in the component ObjectStream::getObject.

How severe is CVE-2020-23879?

CVE-2020-23879 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.36% probability of exploitation in the next 30 days.

How do I fix CVE-2020-23879?

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-2020-23879?

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

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Source: NVD / NIST