Is CVE-2020-27945 in the CISA KEV catalog?

No. CVE-2020-27945 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2020-27945?

CVE-2020-27945 has a CVSS v3 base score of 7.8 (HIGH).

What is the EPSS score for CVE-2020-27945?

CVE-2020-27945 has an EPSS score of 0.73% (50th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2020-27945?

Upgrade mac os x to 10.15.7 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2020-27945

HIGH

7.8

CVSS v3

NVD

Description

An integer overflow was addressed with improved input validation. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, macOS Big Sur 11.0.1. Processing maliciously crafted web content may lead to arbitrary code execution.

CWE-190Integer Overflow

How to fix

Remediation Available

mac os xNVD

Affected:>= 10.15, < 10.15.7Fixed in:10.15.7CVE-2020-27945derived from NVD

macosNVD

Affected:>= 11.0, < 11.2.0Fixed in:11.2.0CVE-2020-27945derived 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 VectorLocal

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

0.73%probability of exploitation in 30 days

50thpercentile

Moderate risk: more likely to be exploited than 50% of all known CVEs.

References

Vendor Advisory2

Related Vulnerabilities

Other CWE-190 (Integer Overflow) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2020-16040	Medium	6.5	100%	-	Fix
CVE-2019-11477	High	7.5	99%	-	Fix
CVE-2023-44443	High	7.8	94%	-	Fix
CVE-2014-0569	High	9.3	90%	-	-
CVE-2017-3599	High	7.5	90%	-	Fix
CVE-2023-21716	Critical	9.8	82%	-	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.