Is CVE-2016-1819 in the CISA KEV catalog?

No. CVE-2016-1819 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2016-1819?

CVE-2016-1819 has a CVSS v3 base score of 7.8 (HIGH).

What is the EPSS score for CVE-2016-1819?

CVE-2016-1819 has an EPSS score of 4.79% (91th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2016-1819?

Upgrade iphone os to 9.3.2 or later. Fixes are available for 4 affected products.

CVE & CISA-KEV Catalog

CVE-2016-1819

HIGHEPSS 91th pctl

7.8

CVSS v3

NVD

Description

Use-after-free vulnerability in the IOAccelContext2::clientMemoryForType method in Apple iOS before 9.3.2, OS X before 10.11.5, tvOS before 9.2.1, and watchOS before 2.2.1 allows attackers to execute arbitrary code in a privileged context or cause a denial of service (memory corruption) via a crafted app, a different vulnerability than CVE-2016-1817 and CVE-2016-1818.

CWE-416Use After Free

How to fix

Remediation Available

iphone osNVD

Affected:< 9.3.2Fixed in:9.3.2CVE-2016-1819derived from NVD

mac os xNVD

Affected:< 10.11.5Fixed in:10.11.5CVE-2016-1819derived from NVD

tvosNVD

Affected:< 9.2.1Fixed in:9.2.1CVE-2016-1819derived from NVD

watchosNVD

Affected:< 2.2.1Fixed in:2.2.1CVE-2016-1819derived 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:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Exploit Intelligence

4.79%probability of exploitation in 30 days

91stpercentile

High risk: more likely to be exploited than 91% of all known CVEs.

References

Exploit2

Vendor Advisory8

Third-Party Advisory3

Related Vulnerabilities

Other CWE-416 (Use After Free) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2019-0708	Critical	9.8	100%	KEV + Ransom	-
CVE-2021-31166	Critical	9.8	100%	KEV	Fix
CVE-2015-5119	Critical	9.8	99%	KEV	-
CVE-2010-3962	High	8.1	97%	KEV	-
CVE-2015-0313	Critical	9.8	96%	KEV	Fix
CVE-2017-9798	High	7.5	95%	-	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 2026-05-06.