CVE-2020-36332 [High] | Input Validation Bypass in Libwebp

CVE-2020-36332 is rated Moderate Risk (55.5/100): CVSS High severity, with medium exploitation likelihood (EPSS 0.82%). Review affected assets and schedule remediation.

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2026-01-07	1.20%	0.82%	-0.38%
2	2025-11-21	0.82%	1.20%	+0.38%
3	2025-11-18	—	0.82%	—

Date

Old EPSS score

New EPSS score

Delta (New - Old)

2026-01-07

1.20%

0.82%

-0.38%

2025-11-21

0.82%

1.20%

+0.38%

2025-11-18

—

0.82%

—

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
7.5	3.1	HIGH	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H` Click to expand Attack vector (AV:N) Could be attacked over the internet or any normal routed network—not just someone sitting at the machine. Attack complexity (AC:L) Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup. Privileges required (PR:N) No account or special rights needed—anonymous or random user is enough. User interaction (UI:N) Nobody has to click “OK” or open a trap file; it can work without a victim helping. Scope (S:U) Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems. Confidentiality (C:N) Doesn’t really leak secrets in a meaningful way. Integrity (I:N) Data isn’t meaningfully altered or forged. Availability (A:H) Could take the service down hard or make it unusable for people who depend on it.	3.9	3.6	[email protected]
5.0	2.0	MEDIUM	`AV:N/AC:L/Au:N/C:N/I:N/A:P` Click to expand Access vector (AV:N) Can be exploited remotely over network reachability. Access complexity (AC:L) Exploitation conditions are straightforward and predictable. Authentication (AU:N) No authentication is required. Confidentiality impact (C:N) No confidentiality impact. Integrity impact (I:N) No integrity impact. Availability impact (A:P) Partial availability impact.	10.0	2.9	[email protected]

Base score

Version

Severity

Vector

Exploitability

Impact

Score source

7.5

3.1

HIGH

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

Attack vector (AV:N): Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L): Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N): No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N): Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U): Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N): Doesn’t really leak secrets in a meaningful way.
Integrity (I:N): Data isn’t meaningfully altered or forged.
Availability (A:H): Could take the service down hard or make it unusable for people who depend on it.

3.9

3.6

[email protected]

5.0

2.0

MEDIUM

AV:N/AC:L/Au:N/C:N/I:N/A:P Click to expand

Access vector (AV:N): Can be exploited remotely over network reachability.
Access complexity (AC:L): Exploitation conditions are straightforward and predictable.
Authentication (AU:N): No authentication is required.
Confidentiality impact (C:N): No confidentiality impact.
Integrity impact (I:N): No integrity impact.
Availability impact (A:P): Partial availability impact.

10.0

2.9

[email protected]

OS Trackers for CVE-2020-36332

vendor	priority	summary	link
`debian`	not yet assigned	CVE-2020-36332 not yet assigned priority: Debian including 1 source packages (libwebp), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5.	https://security-tracker.debian.org/tracker/CVE-2020-36332
`redhat`	medium	—	https://access.redhat.com/security/cve/CVE-2020-36332
`suse`	high	CVE-2020-36332 severity important: SUSE including 260 source package names (amazon/suse-sles-15-sp1-chost-byos-v20210304-hvm-ssd-x86_64, amazon/suse-sles-15-sp1-chost-byos-v20220127-hvm-ssd-x86_64, …), 497 product×package rows across 55 product lines (HPE Helion OpenStack 8, SUSE CaaS Platform 4.0, … (55 product lines)): Known Affected 231, Fixed 191, Known Not Affected 75.	https://www.suse.com/security/cve/CVE-2020-36332/
`ubuntu`	low	CVE-2020-36332 low priority: Ubuntu including 1 source packages (libwebp), 16 status rows across 16 suites (bionic, focal, groovy, hirsute, impish, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): released 13, needed 1, needs-triage 1, not-affected 1.	https://ubuntu.com/security/CVE-2020-36332

Affected software / configurations for CVE-2020-36332

Vendor	Product	Version	Raw CPE
webmproject	libwebp	< 1.0.1	cpe:2.3:a:webmproject:libwebp::::::::
redhat	enterprise_linux	8.0	cpe:2.3:o:redhat:enterprise_linux:8.0:::::::*
debian	debian_linux	10.0	cpe:2.3:o:debian:debian_linux:10.0:::::::*
netapp	ontap_select_deploy_administration_utility	—	cpe:2.3:a:netapp:ontap_select_deploy_administration_utility:-:::::::*

References for CVE-2020-36332

URL	Tags
https://bugzilla.redhat.com/show_bug.cgi?id=1956868	Issue Tracking Patch Third Party Advisory
https://security.netapp.com/advisory/ntap-20211104-0004/	Third Party Advisory
https://www.debian.org/security/2021/dsa-4930	Third Party Advisory

URL

CVE-2020-36332

Exploit prediction scoring system (EPSS) score for CVE-2020-36332

Common vulnerability scoring system (CVSS) metrics for CVE-2020-36332

Weakness enumeration for CVE-2020-36332

OS Trackers for CVE-2020-36332

Affected software / configurations for CVE-2020-36332

References for CVE-2020-36332