Is CVE-2020-9995 in the CISA KEV catalog?

No. CVE-2020-9995 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2020-9995?

CVE-2020-9995 has a CVSS v3 base score of 6.1 (MEDIUM).

What is the EPSS score for CVE-2020-9995?

CVE-2020-9995 has an EPSS score of 0.59% (44th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2020-9995?

Upgrade macos server to 5.11 or later.

CVE & CISA-KEV Catalog

CVE-2020-9995

MEDIUM

6.1

CVSS v3

NVD

Description

An issue existed in the parsing of URLs. This issue was addressed with improved input validation. This issue is fixed in macOS Server 5.11. Processing a maliciously crafted URL may lead to an open redirect or cross site scripting.

CWE-79Cross-Site Scripting (XSS)CWE-601Open Redirect

How to fix

Remediation Available

macos serverNVD

Affected:< 5.11Fixed in:5.11CVE-2020-9995derived from NVD

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 InteractionRequired

ScopeChanged

Impact

ConfidentialityLow

IntegrityLow

AvailabilityNone

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

Exploit Intelligence

0.59%probability of exploitation in 30 days

44thpercentile

Moderate risk: more likely to be exploited than 44% of all known CVEs.

References

Vendor Advisory1

support.apple.com

Related Vulnerabilities

Other CWE-79 (Cross-Site Scripting (XSS)) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2020-11022	Medium	6.9	99%	-	Fix
CVE-2019-3929	Critical	9.8	99%	KEV	Fix
CVE-2020-9496	Medium	6.1	99%	-	-
CVE-2023-28341	Medium	6.1	99%	-	Fix
CVE-2018-12998	Medium	6.1	98%	-	-
CVE-2025-4123	High	7.6	98%	-	Fix

Embed a live status badge for CVE-2020-9995

Markdown

[![CVE-2020-9995](https://tridentstack.com/cve/badge/CVE-2020-9995.svg)](https://tridentstack.com/cve/CVE-2020-9995)

HTML

<a href="https://tridentstack.com/cve/CVE-2020-9995"><img src="https://tridentstack.com/cve/badge/CVE-2020-9995.svg" alt="CVE-2020-9995"></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.