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CVE-2016-4718

23
FAUCET Score

CVE-2016-4718 describes a buffer overflow vulnerability in the FontParser component of Apple iOS, OS X, tvOS, and watchOS, allowing remote attackers to extract sensitive information from process memory via a specially crafted font file. Rated as Medium severity (CVSS 6.5), this vulnerability requires user interaction (UI:R) and network access (AV:N) for exploitation, leading to a high impact on confidentiality (C:H) but no impact on integrity or availability. Despite its potential for data exfiltration, there is no known active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 10.0CPE matchmatch criteria
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
< 10.12.0CPE matchmatch criteria
cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*
< 10.0CPE matchmatch criteria
cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*
< 3.0CPE matchmatch criteria
cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.5MEDIUM

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
2.57%
Probability of exploitation in next 30 days
EPSS Percentile
83.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0257 is in the 92nd percentile among its peer group of 26,220 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

applevendor investigatingvia nvd_reference
View patch

References

lists.apple.com / archives/security-announce/2016/Sep/msg00006.html
Mailing ListVendor Advisory
lists.apple.com / archives/security-announce/2016/Sep/msg00008.html
Mailing ListVendor Advisory
lists.apple.com / archives/security-announce/2016/Sep/msg00010.html
Mailing ListVendor Advisory
lists.apple.com / archives/security-announce/2016/Sep/msg00011.html
Mailing ListVendor Advisory
support.apple.com / HT207141
Vendor Advisory
support.apple.com / HT207142
Vendor Advisory
support.apple.com / HT207143
Vendor Advisory
support.apple.com / HT207170
Vendor Advisory
securityfocus.com / bid/93054
Third Party AdvisoryVDB Entry
securitytracker.com / id/1036858
Third Party AdvisoryVDB Entry