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CVE-2017-13797

39
FAUCET Score

CVE-2017-13797 is a critical WebKit memory corruption vulnerability affecting iOS before 11.1, Safari before 11.0.1, iCloud before 7.1 on Windows, iTunes before 12.7.1 on Windows, and tvOS before 11.1. This flaw allows remote attackers to execute arbitrary code or cause a denial of service via a crafted website. With a CVSS score of 8.8 (High) and a FAUCET Risk Score of 96/100, it presents a significant risk due to its network-based, low-complexity attack vector requiring user interaction. While not listed in CISA KEV and showing no active exploitation or widespread community discussion, a public exploit (EDB-43168) demonstrating a use-after-free in WebCore::PositionIterator::decrement exists.

Impacted Technologies

VendorProductVersion(s)CPE
< 7.1CPE matchmatch criteria
cpe:2.3:a:apple:icloud:*:*:*:*:*:*:*:*
< 12.7.1CPE matchmatch criteria
cpe:2.3:a:apple:itunes:*:*:*:*:*:*:*:*
< 11.0.1CPE matchmatch criteria
cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:*
< 11.1CPE matchmatch criteria
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
< 11.1CPE 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
5.25%
Probability of exploitation in next 30 days
EPSS Percentile
91.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
ExploitDB: EDB-43168 · Nov 22, 2017
This CVE's current EPSS score of 0.0525 is in the 91st percentile among its peer group of 14,855 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

support.apple.com / HT208219
Vendor Advisory
support.apple.com / HT208222
Vendor Advisory
support.apple.com / HT208223
Vendor Advisory
support.apple.com / HT208224
Vendor Advisory
support.apple.com / HT208225
Vendor Advisory
exploit-db.com / exploits/43168
ExploitThird Party AdvisoryVDB Entry