CVE-2020-20740

Name: CVE-2020-20740
Creator: NVD / NIST
Published: 2020-11-20T19:15:11.803+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 1.05%

Last modified Jun 17, 2026

CVE-2020-20740 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. PDFResurrect before 0.20 lack of header validation checks causes heap-buffer-overflow in pdf_get_version().. EPSS estimates a 1.05% chance of exploitation in the next 30 days.

Description

PDFResurrect before 0.20 lack of header validation checks causes heap-buffer-overflow in pdf_get_version().

Metrics

CVSS 3.1

7.8/10

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

EPSS Probability

1.05%

59.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-787

Affected Software

Vendor	Product	Versions
Pdfresurrect Project	Pdfresurrect	< 0.20
Debian	Debian Linux	9.0
Fedoraproject	Fedora	32
Fedoraproject	Fedora	33

References

https://github.com/enferex/pdfresurrect/commit/1b422459f07353adce2878806d5247d9e91fb397Patch, Third Party Advisory
https://github.com/enferex/pdfresurrect/issues/14Exploit, Issue Tracking, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/12/msg00002.htmlMailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JMEEEPBBGER5LPABBRVZLMCC6Z24RBXW/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZOIEVFM3SIMAEOFJKKMYH2TLZ7PXLSUD/
https://github.com/enferex/pdfresurrect/commit/1b422459f07353adce2878806d5247d9e91fb397Patch, Third Party Advisory
https://github.com/enferex/pdfresurrect/issues/14Exploit, Issue Tracking, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/12/msg00002.htmlMailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JMEEEPBBGER5LPABBRVZLMCC6Z24RBXW/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZOIEVFM3SIMAEOFJKKMYH2TLZ7PXLSUD/

Timeline

Published: Nov 20, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-20740?

PDFResurrect before 0.20 lack of header validation checks causes heap-buffer-overflow in pdf_get_version().

How severe is CVE-2020-20740?

CVE-2020-20740 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 1.05% probability of exploitation in the next 30 days.

How do I fix CVE-2020-20740?

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-2020-20740?

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

Scan your code now

Source: NVD / NIST