Is CVE-2016-4582 in the CISA KEV catalog?

No. CVE-2016-4582 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2016-4582?

CVE-2016-4582 has a CVSS v3 base score of 7.8 (HIGH).

What is the EPSS score for CVE-2016-4582?

CVE-2016-4582 has an EPSS score of 0.39% (31th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2016-4582?

Upgrade iphone os to 9.3.3 or later. Fixes are available for 4 affected products.

CVE & CISA-KEV Catalog

CVE-2016-4582

HIGH

7.8

CVSS v3

NVD

Description

The kernel in Apple iOS before 9.3.3, OS X before 10.11.6, tvOS before 9.2.2, and watchOS before 2.2.2 allows local users to gain privileges or cause a denial of service (memory corruption) via unspecified vectors, a different vulnerability than CVE-2016-1863 and CVE-2016-4653.

CWE-119Buffer Overflow

How to fix

Remediation Available

iphone osNVD

Affected:< 9.3.3Fixed in:9.3.3CVE-2016-4582derived from NVD

mac os xNVD

Affected:< 10.11.6Fixed in:10.11.6CVE-2016-4582derived from NVD

tvosNVD

Affected:< 9.2.2Fixed in:9.2.2CVE-2016-4582derived from NVD

watchosNVD

Affected:< 2.2.2Fixed in:2.2.2CVE-2016-4582derived 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 RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

0.39%probability of exploitation in 30 days

31stpercentile

Low risk: more likely to be exploited than 31% of all known CVEs.

References

Vendor Advisory8

Third-Party Advisory2

Related Vulnerabilities

Other CWE-119 (Buffer Overflow) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-4966	Critical	9.4	100%	KEV + Ransom	Fix
CVE-2017-11882	High	7.8	100%	KEV + Ransom	-
CVE-2020-0796	Critical	10.0	100%	KEV + Ransom	-
CVE-2008-4250	Critical	9.8	99%	KEV	-
CVE-2017-15944	Critical	9.8	98%	KEV	Fix
CVE-2015-0014	High	10.0	97%	-	-

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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.