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CVE-2011-0166

18
FAUCET Score

CVE-2011-0166 describes a vulnerability in Apple Safari versions prior to 5.0.4, specifically within the WebKit HTML5 drag and drop functionality. This flaw allows a user-assisted remote attacker to bypass the Same Origin Policy, potentially leading to the disclosure of sensitive information. With a CVSS score of 5.8, it is considered a medium-severity vulnerability, requiring user interaction (AC:M) but not authentication (Au:N) for a network-based attack (AV:N) that primarily impacts confidentiality (C:P) and integrity (I:P). There is no evidence of active exploitation, publicly available exploit code in Metasploit or ExploitDB, nor significant community discussion or media coverage, suggesting it is not widely targeted.

Impacted Technologies

VendorProductVersion(s)CPE
<= 5.0.3CPE matchmatch criteria
cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:*
1.0CPE matchmatch criteria
cpe:2.3:a:apple:safari:1.0:*:*:*:*:*:*:*
1.0CPE matchmatch criteria
cpe:2.3:a:apple:safari:1.0:beta:*:*:*:*:*:*
1.0CPE matchmatch criteria
cpe:2.3:a:apple:safari:1.0:beta2:*:*:*:*:*:*
1.0.0CPE matchmatch criteria
cpe:2.3:a:apple:safari:1.0.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.8MEDIUM

AV:N/AC:M/Au:N/C:P/I:P/A:N

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
4.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
2.06%
Probability of exploitation in next 30 days
EPSS Percentile
79.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0206 is in the 65th percentile among its peer group of 19,955 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

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

Remediation

Vendor Patches (1)

applevendor investigatingvia nvd_reference
View patch

References

lists.apple.com / archives/security-announce/2011//Mar/msg00004.html
Vendor Advisory
lists.apple.com / archives/Security-announce/2011//Oct/msg00001.html
exchange.xforce.ibmcloud.com / vulnerabilities/66004
support.apple.com / kb/HT4566
Vendor Advisory
support.apple.com / kb/HT4999
securityfocus.com / bid/46811
securitytracker.com / id