CVE-2014-1303

Heap-based buffer overflow in Apple Safari 7.0.2 allows remote attackers to execute arbitrary...

10.0 HighPublic exploit

Heap-based buffer overflow in Apple Safari 7.0.2 allows remote attackers to execute arbitrary code and bypass a sandbox protection mechanism via unspecified vectors, as demonstrated by Liang Chen during a Pwn2Own competition at CanSecWest 2014.

Exploit likelihood

34.8%Down 11.3 points since Feb 4, 2022

What each source reports

NVD Score used 10.0

Record: CVE-2014-1303
CVSS 2.0: 10.0 HighAV:N/AC:L/Au:N/C:C/I:C/A:C
Weakness: CWE-119
Updated: 2026-11-02

CVE List No score

Record: CVE-2014-1303
Updated: 2026-11-02

EUVDEUVD-2014-1381 No score

Record: EUVD-2014-1381
Updated: 2026-11-03

GitHub AdvisoriesGHSA-j8m8-7p44-642f No score

Heap-based buffer overflow in Apple Safari 7.0.2 allows remote attackers to execute arbitrary...

Record: GHSA-j8m8-7p44-642f
Weakness: CWE-119
Updated: 2026-11-02

Affected products

apple safari

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
Source	Link	Date
Exploit-DB	Sony Playstation 4 (PS4) < 2.50 - WebKit Code Execution (PoC)	2016-04-21
Exploit-DB	WebKitGTK 2.1.2 (Ubuntu 14.04) - Heap based Buffer Overflow	2017-08-19
PoC in GitHub	RKX1209/CVE-2014-1303	2017-07-07

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, Exploit-DB, GitHub Advisories, NVD, PoC in GitHub

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

In short

CVE-2014-1303 is a high vulnerability (CVSS 10.0) in Apple Safari, published March 26, 2014. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 34.8%, the 98th percentile. No source names a fixed version.