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CVE-2017-2455

34
FAUCET Score

CVE-2017-2455 is a critical vulnerability affecting Apple's WebKit component in iOS prior to 10.3, Safari prior to 10.1, and tvOS prior to 10.2. This flaw, categorized as a use-after-free (CWE-119), allows remote attackers to execute arbitrary code or cause a denial of service through memory corruption and application crashes by enticing users to visit a specially crafted website. With a CVSS v3 score of 8.8 (High), it presents a significant risk due to its network-based attack vector and low attack complexity, requiring only user interaction. While not listed on CISA's KEV catalog, an exploit (EDB-41809) is publicly available, though there is no evidence of widespread active exploitation or significant community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
<= 10.0.3CPE matchmatch criteria
cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:*
<= 10.2.1CPE matchmatch criteria
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
<= 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
6.77%
Probability of exploitation in next 30 days
EPSS Percentile
93.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
ExploitDB: EDB-41809 · Apr 4, 2017
This CVE's current EPSS score of 0.0677 is in the 93rd 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

bugs.chromium.org / p/project-zero/issues/detail
security.gentoo.org / glsa/201706-15
support.apple.com / HT207600
Vendor Advisory
support.apple.com / HT207601
Vendor Advisory
support.apple.com / HT207617
Vendor Advisory
exploit-db.com / exploits/41809
securityfocus.com / bid/97130
Third Party AdvisoryVDB Entry
securitytracker.com / id/1038137