CVE-2020-35524

Name: CVE-2020-35524
Creator: NVD / NIST
Published: 2021-03-09T20:15:13.04+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 1.85%

Last modified Jun 17, 2026

CVE-2020-35524 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. A heap-based buffer overflow flaw was found in libtiff in the handling of TIFF images in libtiff's TIFF2PDF tool. A specially crafted TIFF file can lead to arbitrary code execution. EPSS estimates a 1.85% chance of exploitation in the next 30 days.

Description

A heap-based buffer overflow flaw was found in libtiff in the handling of TIFF images in libtiff's TIFF2PDF tool. A specially crafted TIFF file can lead to arbitrary code execution. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

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

1.85%

76.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Libtiff	Libtiff	< 4.2.0
Debian	Debian Linux	9.0
Debian	Debian Linux	10.0
Fedoraproject	Fedora	33
Netapp	Ontap Select Deploy Administration Utility	All versions
Redhat	Enterprise Linux	6.0
Redhat	Enterprise Linux	7.0
Redhat	Enterprise Linux	8.0

References

https://bugzilla.redhat.com/show_bug.cgi?id=1932044Issue Tracking, Patch, Third Party Advisory
https://gitlab.com/libtiff/libtiff/-/merge_requests/159Patch, Third Party Advisory
https://gitlab.com/rzkn/libtiff/-/commit/7be2e452ddcf6d7abca88f41d3761e6edab72b22Patch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/06/msg00023.htmlMailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BMHBYFMX3D5VGR6Y3RXTTH3Q4NF4E6IG/
https://security.gentoo.org/glsa/202104-06Third Party Advisory
https://security.netapp.com/advisory/ntap-20210521-0009/Third Party Advisory
https://www.debian.org/security/2021/dsa-4869Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1932044Issue Tracking, Patch, Third Party Advisory
https://gitlab.com/libtiff/libtiff/-/merge_requests/159Patch, Third Party Advisory
https://gitlab.com/rzkn/libtiff/-/commit/7be2e452ddcf6d7abca88f41d3761e6edab72b22Patch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/06/msg00023.htmlMailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BMHBYFMX3D5VGR6Y3RXTTH3Q4NF4E6IG/
https://security.gentoo.org/glsa/202104-06Third Party Advisory
https://security.netapp.com/advisory/ntap-20210521-0009/Third Party Advisory
https://www.debian.org/security/2021/dsa-4869Third Party Advisory

Timeline

Published: Mar 9, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-35524?

How severe is CVE-2020-35524?

CVE-2020-35524 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 1.85% probability of exploitation in the next 30 days.

How do I fix CVE-2020-35524?

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-2020-35524?

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

Scan your code now

Source: NVD / NIST