What is CVE-2014-4443?

CVE-2014-4443 is a vulnerability in Apple Mac OS X, classified under Improper Input Validation. Published 2014-10-18.

Is CVE-2014-4443 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Improper input validation in Apple Mac OS X

CVE-2014-4443

Apple OS X before 10.10 allows remote attackers to cause a denial of service (NULL pointer dereference) via crafted ASN.1 data.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

Published 2014-10-18 · last modified 2026-06-17.

CVSS v2 metric

CVSS v2 base score 7.8 (High). Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C. This CVE predates CVSS v3 and has no v3 score from NVD.

EPSS exploit prediction

EPSS: 0.026 (84.5th percentile), scored 2026-10-02.

Low probability of exploitation in the next 30 days, but still tracked. 85th percentile — 84.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.026 · newest: 0.026 · change: 0.000

Affected products

Apple Mac OS X

Weakness classification (CWE)

CWE-20 — Improper Input Validation

Public proof-of-concept exploits

tenable/integration-cef

References

archives.neohapsis.com/archives/bugtraq/2014-10/0101.html (vendor-advisory)
www.securitytracker.com/id/1031063 (vdb-entry)
www.securityfocus.com/bid/70625 (vdb-entry)
support.apple.com/kb/HT6535 (Vendor Advisory)
exchange.xforce.ibmcloud.com/vulnerabilities/97624 (vdb-entry)

Frequently asked questions

What is CVE-2014-4443?: CVE-2014-4443 is a vulnerability in Apple Mac OS X, classified under Improper Input Validation. Published 2014-10-18.
Is CVE-2014-4443 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.