Is CVE-2020-36177 in the CISA KEV catalog?

No. CVE-2020-36177 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2020-36177?

CVE-2020-36177 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2020-36177?

CVE-2020-36177 has an EPSS score of 3.52% (88th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2020-36177?

Upgrade wolfssl on debian 11 to 4.6.0-1 or later.

CVE & CISA-KEV Catalog

CVE-2020-36177

CRITICALEPSS 88th pctl

9.8

CVSS v3

NVD

Description

RsaPad_PSS in wolfcrypt/src/rsa.c in wolfSSL before 4.6.0 has an out-of-bounds write for certain relationships between key size and digest size.

CWE-787Out-of-bounds Write

How to fix

Remediation Available

wolfsslDebian

Fixed in:4.6.0-1CVE-2020-36177

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

3.52%probability of exploitation in 30 days

88thpercentile

Elevated risk: more likely to be exploited than 88% of all known CVEs.

References

Patch3

Exploit1

bugs.chromium.org

Third-Party Advisory1

github.com

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

Embed a live status badge for CVE-2020-36177

Markdown

[![CVE-2020-36177](https://tridentstack.com/cve/badge/CVE-2020-36177.svg)](https://tridentstack.com/cve/CVE-2020-36177)

HTML

<a href="https://tridentstack.com/cve/CVE-2020-36177"><img src="https://tridentstack.com/cve/badge/CVE-2020-36177.svg" alt="CVE-2020-36177"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

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.