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CVE-2015-5903

28
FAUCET Score

CVE-2015-5903 is a critical memory corruption vulnerability in the kernel of Apple iOS before version 9, affecting iPhones, macOS, and watchOS, allowing local users to gain privileges or cause a denial of service. With a CVSS score of 10.0, it represents a severe risk with complete compromise of confidentiality, integrity, and availability. While no public exploit intelligence or active exploitation is reported, its high FAUCET Risk Score of 82/100 indicates significant potential danger. Despite its severity, there is no recorded community discussion or media coverage, which is typical for a large percentage of CVEs.

Impacted Technologies

VendorProductVersion(s)CPE
<= 10.10.5CPE matchmatch criteria
cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*
<= 8.4.1CPE matchmatch criteria
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
1.0CPE matchmatch criteria
cpe:2.3:o:apple:watchos:1.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

10.0HIGH

AV:N/AC:L/Au:N/C:C/I:C/A:C

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
2.20%
Probability of exploitation in next 30 days
EPSS Percentile
80.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0220 is in the 66th percentile among its peer group of 51,551 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 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/2015/Sep/msg00001.html
Vendor Advisory
lists.apple.com / archives/security-announce/2015/Sep/msg00005.html
Vendor Advisory
lists.apple.com / archives/security-announce/2015/Sep/msg00008.html
Vendor Advisory
support.apple.com / HT205212
Vendor Advisory
support.apple.com / HT205213
Vendor Advisory
support.apple.com / HT205267
Vendor Advisory
securityfocus.com / bid/76764
securitytracker.com / id/1033609