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CVE-2016-4622

WebKit in Apple iOS before 9.3.3, Safari before 9.1.2, and tvOS before 9.2.2 allows remote...

8.8 HighPublic exploitFix available

WebKit in Apple iOS before 9.3.3, Safari before 9.1.2, and tvOS before 9.2.2 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site, a different vulnerability than CVE-2016-4589, CVE-2016-4623, and CVE-2016-4624.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
Required

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

20.4%Down 6.5 points since Feb 4, 2022
90%50%10%1%

What each source reports

NVD Score used 8.8

WebKit in Apple iOS before 9.3.3, Safari before 9.1.2, and tvOS before 9.2.2 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site, a different vulnerability than CVE-2016-4589, CVE-2016-4623, and CVE-2016-4624.

Record
CVE-2016-4622
CVSS 3.0
8.8 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS 2.0
6.8 MediumAV:N/AC:M/Au:N/C:P/I:P/A:P
Weakness
CWE-119
Updated
2026-11-02
CVE List No score

WebKit in Apple iOS before 9.3.3, Safari before 9.1.2, and tvOS before 9.2.2 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site, a different vulnerability than CVE-2016-4589, CVE-2016-4623, and CVE-2016-4624.

Record
CVE-2016-4622
Updated
2026-11-02
EUVDEUVD-2016-5608 No score

WebKit in Apple iOS before 9.3.3, Safari before 9.1.2, and tvOS before 9.2.2 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site, a different vulnerability than CVE-2016-4589, CVE-2016-4623, and CVE-2016-4624.

Record
EUVD-2016-5608
Updated
2026-11-03
GitHub AdvisoriesGHSA-fcp9-3jj8-v7vp 8.8

WebKit in Apple iOS before 9.3.3, Safari before 9.1.2, and tvOS before 9.2.2 allows remote...

WebKit in Apple iOS before 9.3.3, Safari before 9.1.2, and tvOS before 9.2.2 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site, a different vulnerability than CVE-2016-4589, CVE-2016-4623, and CVE-2016-4624.

Record
GHSA-fcp9-3jj8-v7vp
CVSS 3.0
8.8 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness
CWE-119
Updated
2026-11-02
OSV 8.8

WebKit in Apple iOS before 9.3.3, Safari before 9.1.2, and tvOS before 9.2.2 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site, a different vulnerability than CVE-2016-4589, CVE-2016-4623, and CVE-2016-4624.

Record
CVE-2016-4622
CVSS 3.0
8.8 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVDEBIAN-CVE-2016-4622 8.8

WebKit in Apple iOS before 9.3.3, Safari before 9.1.2, and tvOS before 9.2.2 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site, a different vulnerability than CVE-2016-4589, CVE-2016-4623, and CVE-2016-4624.

Record
DEBIAN-CVE-2016-4622
CVSS 3.0
8.8 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
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OSVUBUNTU-CVE-2016-4622 8.8

WebKit in Apple iOS before 9.3.3, Safari before 9.1.2, and tvOS before 9.2.2 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site, a different vulnerability than CVE-2016-4589, CVE-2016-4623, and CVE-2016-4624.

Record
UBUNTU-CVE-2016-4622
CVSS 3.0
8.8 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVMGASA-2016-0294 No score

Updated webkit2 packages fix security vulnerability

The webkit2 package has been updated to version 2.12.4, fixing several security issues and other bugs.

Record
MGASA-2016-0294
Updated
2026-11-02
OSVopenSUSE-SU-2024:10572-1 No score

libjavascriptcoregtk-4_0-18-2.14.2-2.1 on GA media

These are all security issues fixed in the libjavascriptcoregtk-4_0-18-2.14.2-2.1 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2024:10572-1
Updated
2026-11-02
OSVUSN-3079-1 No score

webkit2gtk vulnerabilities

A large number of security issues were discovered in the WebKitGTK+ Web and JavaScript engines. If a user were tricked into viewing a malicious website, a remote attacker could exploit a variety of issues related to web browser security, including cross-site scripting attacks, denial of service attacks, and arbitrary code execution.

Record
USN-3079-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
webkit2gtk
Debian:12
 before 2.12.4-1
2.12.4-1
webkit2gtk
Debian:13
 before 2.12.4-1
2.12.4-1
webkit2gtk
Debian:14
 before 2.12.4-1
2.12.4-1
webkit2
Mageia:5
From an advisory covering 9 CVEs
 before 2.12.4-1.mga5
2.12.4-1.mga5
webkit2gtk
Ubuntu:16.04:LTS
 before 2.12.5-0ubuntu0.16.04.1, plus listed versions
2.8.5+dfsg1-32.10.3+dfsg1-12.10.4+dfsg1-12.10.5-12.10.6-12.10.6-1ubuntu12.10.8-1ubuntu12.10.9-1ubuntu1
2.12.5-0ubuntu0.16.04.1
qtwebkit-opensource-src
Ubuntu:16.04:LTS
 All versions, plus listed versions
5.4.2+dfsg-1ubuntu2.15.5.1+dfsg-2ubuntu1
 None known
qtwebkit-source
Ubuntu:16.04:LTS
 All versions, plus listed versions
2.3.2-0ubuntu102.3.2-0ubuntu11
 None known
webkitgtk
Ubuntu:16.04:LTS
 All versions, plus listed versions
2.4.9-2ubuntu22.4.10-0ubuntu12.4.11-0ubuntu0.1
 None known
webkit2gtk
Ubuntu:16.04:LTS
From an advisory covering 16 CVEs
 before 2.12.5-0ubuntu0.16.04.1, plus listed versions
2.8.5+dfsg1-32.10.3+dfsg1-12.10.4+dfsg1-12.10.5-12.10.6-12.10.6-1ubuntu12.10.8-1ubuntu12.10.9-1ubuntu1
2.12.5-0ubuntu0.16.04.1
gtk3
openSUSE:Tumbleweed
From an advisory covering 6 CVEs
 before 2.14.2-2.1
2.14.2-2.1

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
SourceLinkDate
PoC in GitHubsaelo/jscpwn2016-10-09
PoC in GitHubhdbreaker/WebKit-CVE-2016-46222020-04-07

History

History
RecordedChangedSources
affected, exploits, facts
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV, PoC in GitHub

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2016-4622 is a high vulnerability (CVSS 8.8) in Apple Safari, published July 21, 2016. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 20.4%, the 97th percentile. Fixed in webkit2gtk 2.12.4-1.

References

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