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CVE-2017-6979

30
FAUCET Score

CVE-2017-6979 is a race condition vulnerability in the IOSurface component of Apple's iOS (before 10.3.2), macOS (before 10.12.5), tvOS (before 10.2.1), and watchOS (before 3.2.2). This vulnerability has a CVSS score of 7.0 (HIGH), indicating that an attacker could execute arbitrary code in a privileged context through a crafted application, albeit with high attack complexity and requiring user interaction. While not listed on CISA's KEV, exploit code for this kernel vulnerability has been publicly released (EDB-42555), leading to significant community discussion and media coverage, including reports of a fully working exploit.

Impacted Technologies

VendorProductVersion(s)CPE
<= 10.3.1CPE matchmatch criteria
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
<= 10.12.4CPE matchmatch criteria
cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*
<= 10.2CPE matchmatch criteria
cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*
<= 3.2CPE matchmatch criteria
cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.0HIGH

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

Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.0
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
3.64%
Probability of exploitation in next 30 days
EPSS Percentile
88.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
ExploitDB: EDB-42555 · Aug 26, 2017
This CVE's current EPSS score of 0.0364 is in the 95th percentile among its peer group of 386 CVEs.

Social Chatter

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

Media Mentions

The average CVE in this peer group has 0.2 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

applevendor investigatingvia nvd_reference
View patch

References

support.apple.com / HT207797
Vendor Advisory
support.apple.com / HT207798
Vendor Advisory
support.apple.com / HT207800
Vendor Advisory
support.apple.com / HT207801
Vendor Advisory
exploit-db.com / exploits/42555
securityfocus.com / bid/98468
Third Party AdvisoryVDB Entry
securitytracker.com / id/1038484