CVE-2016-4586
WebKit in Apple Safari before 9.1.2 and tvOS before 9.2.2 allows remote attackers to execute...
WebKit in Apple 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.
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
What each source reports
NVD Score used
WebKit in Apple 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.
- Record
CVE-2016-4586- CVSS 3.0
- 8.8 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - CVSS 2.0
- 6.8 Medium
AV: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 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.
- Record
CVE-2016-4586- Updated
- 2026-11-02
EUVDEUVD-2016-5572 No score
WebKit in Apple 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.
- Record
EUVD-2016-5572- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-5r7h-w8gh-phg2
WebKit in Apple Safari before 9.1.2 and tvOS before 9.2.2 allows remote attackers to execute...
WebKit in Apple 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.
- Record
GHSA-5r7h-w8gh-phg2- CVSS 3.0
- 8.8 High
CVSS: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
OSVUBUNTU-CVE-2016-4586
WebKit in Apple 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.
- Record
UBUNTU-CVE-2016-4586- CVSS 3.0
- 8.8 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - 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
| Package | Affected | Fixed |
|---|---|---|
webkit2gtkUbuntu: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-srcUbuntu:16.04:LTS |
All versions, plus listed versions 5.4.2+dfsg-1ubuntu2.15.5.1+dfsg-2ubuntu1 |
None known |
qtwebkit-sourceUbuntu:16.04:LTS |
All versions, plus listed versions 2.3.2-0ubuntu102.3.2-0ubuntu11 |
None known |
webkitgtkUbuntu:16.04:LTS |
All versions, plus listed versions 2.4.9-2ubuntu22.4.10-0ubuntu12.4.11-0ubuntu0.1 |
None known |
webkit2gtkUbuntu: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 |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, facts | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2016-4586 is a high vulnerability (CVSS 8.8) in Apple Safari, published July 21, 2016. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.34%, the 83rd percentile. Fixed in webkit2gtk 2.12.5-0ubuntu0.16.04.1.
References
securityfocus.com/bid/91827
lists.apple.com/archives/security-announce/2016/Jul/msg00003.html
support.apple.com/HT206900
securitytracker.com/id/1036343
packetstormsecurity.com/files/138502/WebKitGTK-SOP-Bypass-Information-Disclosure.html
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nvd.nist.gov/vuln/detail/CVE-2016-4586
github.com/advisories/GHSA-5r7h-w8gh-phg2
ubuntu.com/security/CVE-2016-4586
webkitgtk.org/security/WSA-2016-0005.html
cve.org/CVERecord?id=CVE-2016-4586