CVE-2011-3246

What it is

CFNetwork in Apple iOS before 5.0.1 and Mac OS X 10.7 before 10.7.2 does not properly parse URLs, which allows remote attackers to trigger visits to unintended web sites, and transmission of cookies to unintended web sites, via a crafted (1) http or (2) https URL.

At a glance

Exploitability

Can be exploited over the network without logging in. Limited direct impact.

Exploit odds

3.0% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2011-10-14 10:55 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-16 23:32 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 3.0% in the next 30 days (EPSS).
• Severity: 5.0 MEDIUM (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2011-10-14 10:55 UTC

Last modified

2026-06-16 23:32 UTC

Exploit probability

3.0% · EPSS, next 30 days

Weakness

CWE-200 · Information exposure

Record status

Modified

Affected

• Apple Mac Os X 10.7.0
• Apple Mac Os X 10.7.1
• Apple Mac Os X Server 10.7.0
• Apple Mac Os X Server 10.7.1
• Apple Iphone Os 3.0
• Apple Iphone Os 3.1
• Apple Iphone Os 3.1.2
• Apple Iphone Os 3.1.3

Attack profile CVSS 2.0 · 5.0

Attack vector

Network

Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

None

Availability

None

Is it in your code?

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