Is CVE-2020-36328 in the CISA KEV catalog?

No. CVE-2020-36328 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2020-36328?

CVE-2020-36328 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2020-36328?

CVE-2020-36328 has an EPSS score of 2.66% (84th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2020-36328?

Upgrade libwebp on debian 11 to 0.6.1-2.1 or later. Fixes are available for 8 affected products.

CVE & CISA-KEV Catalog

CVE-2020-36328

CRITICALEPSS 84th pctl

9.8

CVSS v3

NVD

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.

CWE-787Out-of-bounds Write

How to fix

Remediation Available

libwebpDebian

Fixed in:0.6.1-2.1CVE-2020-36328

libwebpUbuntu

Fixed in:0.4.0-4ubuntu0.1~esm1USN-4971-2

Fixed in:0.4.4-1ubuntu0.1~esm1USN-4971-2

Fixed in:0.6.1-2ubuntu0.18.04.1USN-4971-1

Fixed in:0.6.1-2ubuntu0.20.04.1USN-4971-1

libwebp5Ubuntu

Fixed in:0.4.0-4ubuntu0.1~esm1USN-4971-2

Fixed in:0.4.4-1ubuntu0.1~esm1USN-4971-2

libwebp6Ubuntu

Fixed in:0.6.1-2ubuntu0.18.04.1USN-4971-1

Fixed in:0.6.1-2ubuntu0.20.04.1USN-4971-1

libwebpdemux1Ubuntu

Fixed in:0.4.0-4ubuntu0.1~esm1USN-4971-2

Fixed in:0.4.4-1ubuntu0.1~esm1USN-4971-2

libwebpdemux2Ubuntu

Fixed in:0.6.1-2ubuntu0.18.04.1USN-4971-1

Fixed in:0.6.1-2ubuntu0.20.04.1USN-4971-1

libwebpmux1Ubuntu

Fixed in:0.4.0-4ubuntu0.1~esm1USN-4971-2

Fixed in:0.4.4-1ubuntu0.1~esm1USN-4971-2

libwebpmux3Ubuntu

Fixed in:0.6.1-2ubuntu0.18.04.1USN-4971-1

Fixed in:0.6.1-2ubuntu0.20.04.1USN-4971-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

2.66%probability of exploitation in 30 days

84thpercentile

Elevated risk: more likely to be exploited than 84% of all known CVEs.

References

Patch1

bugzilla.redhat.com

Third-Party Advisory6

Related Vulnerabilities

Other CWE-787 (Out-of-bounds Write) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2025-22457	Critical	9.0	100%	KEV + Ransom	Fix
CVE-2025-0282	Critical	9.0	100%	KEV + Ransom	-
CVE-2015-3113	Critical	9.8	100%	KEV	Fix
CVE-2021-20038	Critical	9.8	100%	KEV + Ransom	-
CVE-2023-4863	High	8.8	100%	KEV	Fix
CVE-2020-16040	Medium	6.5	100%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.