Public proof of conceptFix available

CVE-2016-1827

Q: Is CVE-2016-1827 actively exploited?

Active exploitation of CVE-2016-1827 has not been confirmed. Its EPSS score was 5.6% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2016-1827?

CVE-2016-1827 has a CVSS v3 base score of 7.8 (HIGH severity), with vector string CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

A public proof of concept exists; no exploitation attested.

Published2016-05-20
Fixed in9.3.2
WeaknessCWE-119

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

The kernel 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-2016-1828, CVE-2016-1829, and CVE-2016-1830.

Timeline

dates in UTC

2016-05-2010:59CVE publishedNVD
2026-10-2319:23First public proof of conceptPoC-in-GitHub

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2016-1827?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2016-1827?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Apple iphone os

Branch	Affected	Fixed in	Source
9.3	< 9.3.2	9.3.2	NVD

Apple mac os x

Branch	Affected	Fixed in	Source
10.11	< 10.11.5	10.11.5	NVD

Apple tvos

Branch	Affected	Fixed in	Source
9.2	< 9.2.1	9.2.1	NVD

1 more product in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Update Apple iphone os to 9.3.2

Advisories and patches

lists.apple.comVendor Advisory
lists.apple.comVendor Advisory
lists.apple.comVendor Advisory
lists.apple.comVendor Advisory
support.apple.comVendor Advisory
support.apple.comVendor Advisory

Detection

read 2026-10-23 19:23 UTC

Nuclei template: none so far
Exploit-DB: EDB-44238
Proof-of-concept repositories: 1 repository, unverifiedbazad/flow_divert-heap-overflow

Sources

NVDCVSS 3.07.8read 2026-10-23
NVDCVSS 2.09.3read 2026-10-23
NVDweakness (CWE)CWE-119read 2026-10-23
FIRST EPSSEPSS score5.6 %2026-10-23
PoC-in-GitHubproof of concept1read 2026-10-23

Technical details

CVSS v3 Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Published: 2016-05-20
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2016-1827?

Is CVE-2016-1827 actively exploited?

Active exploitation of CVE-2016-1827 has not been confirmed. Its EPSS score was 5.6% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2016-1827?

CVE-2016-1827 has a CVSS v3 base score of 7.8 (HIGH severity), with vector string CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

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