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CVE-2011-3447

16
FAUCET Score

CVE-2011-3447 describes an information disclosure vulnerability in Apple Mac OS X 10.7.x before 10.7.3, where CFNetwork improperly constructs request headers when parsing URLs. This flaw allows remote attackers to obtain sensitive information through a specially crafted, malformed URL. With a CVSS score of 4.3, this vulnerability has a network attack vector, medium attack complexity, and a potential impact of partial confidentiality loss. There is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
10.7.0CPE matchmatch criteria
cpe:2.3:o:apple:mac_os_x:10.7.0:*:*:*:*:*:*:*
10.7.1CPE matchmatch criteria
cpe:2.3:o:apple:mac_os_x:10.7.1:*:*:*:*:*:*:*
10.7.2CPE matchmatch criteria
cpe:2.3:o:apple:mac_os_x:10.7.2:*:*:*:*:*:*:*
10.7.0CPE matchmatch criteria
cpe:2.3:o:apple:mac_os_x_server:10.7.0:*:*:*:*:*:*:*
10.7.1CPE matchmatch criteria
cpe:2.3:o:apple:mac_os_x_server:10.7.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.3MEDIUM

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

Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.44%
Probability of exploitation in next 30 days
EPSS Percentile
70.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0144 is in the 42nd percentile among its peer group of 19,953 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/2012/Feb/msg00000.html
Vendor Advisory
support.apple.com / kb/HT5130
Vendor Advisory