CVE-2020-36328

Name: CVE-2020-36328
Creator: NVD / NIST
Published: 2021-05-21T17:15:08.27+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 2.66%

Last modified Jun 17, 2026

CVE-2020-36328 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. A flaw was found in libwebp in versions before 1.0.1. A heap-based buffer overflow in function WebPDecodeRGBInto is possible due to an invalid check for buffer size. EPSS estimates a 2.66% chance of exploitation in the next 30 days.

Description

A flaw was found in libwebp in versions before 1.0.1. A heap-based buffer overflow in function WebPDecodeRGBInto is possible due to an invalid check for buffer size. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

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

2.66%

83.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Webmproject	Libwebp	< 1.0.1
Redhat	Enterprise Linux	7.0
Redhat	Enterprise Linux	8.0
Netapp	Ontap Select Deploy Administration Utility	All versions
Debian	Debian Linux	9.0
Debian	Debian Linux	10.0
Apple	Ipados	14.7
Apple	Iphone Os	14.7

References

http://seclists.org/fulldisclosure/2021/Jul/54Mailing List, Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1956829Issue Tracking, Patch, Release Notes, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/06/msg00005.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/06/msg00006.htmlMailing List, Third Party Advisory
https://security.netapp.com/advisory/ntap-20211112-0001/Third Party Advisory
https://support.apple.com/kb/HT212601Third Party Advisory
https://www.debian.org/security/2021/dsa-4930Third Party Advisory
http://seclists.org/fulldisclosure/2021/Jul/54Mailing List, Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1956829Issue Tracking, Patch, Release Notes, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/06/msg00005.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/06/msg00006.htmlMailing List, Third Party Advisory
https://security.netapp.com/advisory/ntap-20211112-0001/Third Party Advisory
https://support.apple.com/kb/HT212601Third Party Advisory
https://www.debian.org/security/2021/dsa-4930Third Party Advisory

Timeline

Published: May 21, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-36328?

How severe is CVE-2020-36328?

CVE-2020-36328 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 2.66% probability of exploitation in the next 30 days.

How do I fix CVE-2020-36328?

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-2020-36328?

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

Scan your code now

Source: NVD / NIST