Is CVE-2020-3846 in the CISA KEV catalog?

No. CVE-2020-3846 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2020-3846?

CVE-2020-3846 has a CVSS v3 base score of 8.8 (HIGH).

What is the EPSS score for CVE-2020-3846?

CVE-2020-3846 has an EPSS score of 1.78% (76th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2020-3846?

Upgrade iCloud (Legacy) to 7.17 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2020-3846

HIGHEPSS 76th pctl

8.8

CVSS v3

NVD

Description

A buffer overflow was addressed with improved size validation. This issue is fixed in iOS 13.3.1 and iPadOS 13.3.1, macOS Catalina 10.15.3, tvOS 13.3.1, watchOS 6.1.2, iTunes for Windows 12.10.4, iCloud for Windows 11.0, iCloud for Windows 7.17. Processing maliciously crafted XML may lead to an unexpected application termination or arbitrary code execution.

CWE-20Improper Input Validation CWE-119Buffer Overflow

How to fix

Remediation Available

iCloud (Legacy)Windows application

Affected:7.17Fixed in:7.17Apple Inc.

Affected:10.0 10.8Fixed in:10.8Apple Inc.

iTunesWindows application

Affected:12.10.4Fixed in:12.10.4Apple Inc.

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

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

1.78%probability of exploitation in 30 days

76thpercentile

Elevated risk: more likely to be exploited than 76% of all known CVEs.

References

Vendor Advisory2

Related Vulnerabilities

Other CWE-20 (Improper Input Validation) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2024-3400	Critical	10.0	100%	KEV + Ransom	-
CVE-2021-45105	Medium	5.9	100%	-	Fix
CVE-2021-44228	Critical	10.0	100%	KEV + Ransom	Fix
CVE-2021-21985	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2018-7600	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2020-3452	High	7.5	100%	KEV	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.