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CVE-2017-2539

22
FAUCET Score

CVE-2017-2539 is a critical vulnerability in Apple's WebKit component, affecting iOS versions prior to 10.3.2 and Safari versions prior to 10.1.1. This flaw allows remote attackers to execute arbitrary code or trigger a denial of service through memory corruption by enticing a user 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, or significant community discussion has been observed, the vulnerability's potential for severe impact warrants attention.

Impacted Technologies

VendorProductVersion(s)CPE
<= 10.1CPE matchmatch criteria
cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:*
<= 10.3.1CPE matchmatch criteria
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*

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
1.80%
Probability of exploitation in next 30 days
EPSS Percentile
76.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0180 is in the 75th percentile among its peer group of 14,875 CVEs.

Social Chatter

No social media mentions found for this CVE.

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
support.apple.com / HT207798
Vendor Advisory
support.apple.com / HT207804
Vendor Advisory
securityfocus.com / bid/98474
securitytracker.com / id/1038487