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CVE-2017-2356

28
FAUCET Score

CVE-2017-2356 is a critical WebKit vulnerability affecting multiple Apple products, including iOS, Safari, iCloud, iTunes, and tvOS versions prior to their respective patches. This flaw allows remote attackers to execute arbitrary code or trigger a denial of service through memory corruption and application crashes by enticing users to visit a specially crafted website. With a CVSS score of 8.8 (HIGH), it presents a significant risk due to its network-based attack vector, low attack complexity, and high impact on confidentiality, integrity, and availability. While no active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion has been observed, the inherent danger of a WebKit vulnerability warrants prompt patching.

Impacted Technologies

VendorProductVersion(s)CPE
< 10.2.1CPE matchmatch criteria
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
< 10.0.3CPE matchmatch criteria
cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:*
< 6.1.1CPE matchmatch criteria
cpe:2.3:a:apple:icloud:*:*:*:*:*:windows:*:*
< 12.5.5CPE matchmatch criteria
cpe:2.3:a:apple:itunes:*:*:*:*:*:windows:*:*
< 10.1.1CPE matchmatch criteria
cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

8.8HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.93%
Probability of exploitation in next 30 days
EPSS Percentile
77.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0193 is in the 77th percentile among its peer group of 14,875 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.

Remediation

Vendor Patches (1)

applevendor investigatingvia nvd_reference
View patch

References

security.gentoo.org / glsa/201706-15
Third Party Advisory
support.apple.com / HT207481
Vendor Advisory
support.apple.com / HT207482
Vendor Advisory
support.apple.com / HT207484
Vendor Advisory
support.apple.com / HT207485
Vendor Advisory
support.apple.com / HT207486
Vendor Advisory
securityfocus.com / bid/95736
Third Party AdvisoryVDB Entry
securitytracker.com / id/1037668
Third Party AdvisoryVDB Entry