Is CVE-2021-30860 in the CISA KEV catalog?

Yes. CVE-2021-30860 is on the CISA Known Exploited Vulnerabilities list, added 2021-11-03.

What is the CVSS severity of CVE-2021-30860?

CVE-2021-30860 has a CVSS v3 base score of 7.8 (HIGH).

What is the EPSS score for CVE-2021-30860?

CVE-2021-30860 has an EPSS score of 75.99% (99th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-30860?

Upgrade ipados to 14.8 or later. Fixes are available for 7 affected products.

CVE & CISA-KEV Catalog

CVE-2021-30860

HIGHCISA KEVEPSS 99th pctl

7.8

CVSS v3

NVD

Description

An integer overflow was addressed with improved input validation. This issue is fixed in Security Update 2021-005 Catalina, iOS 14.8 and iPadOS 14.8, macOS Big Sur 11.6, watchOS 7.6.2. Processing a maliciously crafted PDF may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited.

CWE-190Integer Overflow

How to fix

Remediation Available

ipadosNVD

Affected:< 14.8Fixed in:14.8CVE-2021-30860derived from NVD

iphone osNVD

Affected:>= 13.0, < 14.8Fixed in:14.8CVE-2021-30860derived from NVD

mac os xNVD

Affected:>= 10.15, < 10.15.7Fixed in:10.15.7CVE-2021-30860derived from NVD

macosNVD

Affected:< 11.6Fixed in:11.6CVE-2021-30860derived from NVD

popplerNVD

Affected:< 22.09.0Fixed in:22.09.0CVE-2021-30860derived from NVD

watchosNVD

Affected:< 7.6.2Fixed in:7.6.2CVE-2021-30860derived from NVD

xpdfNVD

Affected:< 4.04Fixed in:4.04CVE-2021-30860derived from NVD

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

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

75.99%probability of exploitation in 30 days

99thpercentile

Very high risk: more likely to be exploited than 99% of all known CVEs.

Known Exploited Vulnerability (CISA KEV)

Apple Multiple Products Integer Overflow Vulnerability

Apple iOS, iPadOS, macOS, and watchOS CoreGraphics contain an integer overflow vulnerability which may allow code execution when processing a maliciously crafted PDF. The vulnerability is also known under the moniker of FORCEDENTRY.

Apply updates per vendor instructions.

Remediation due: 2021-11-17

References

Vendor Advisory5

Third-Party Advisory9

Government Resource1

cisa.gov

Mailing List1

openwall.com

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 2025-10-27.