CVE-2012-3732
Description
Mail in iOS before 6 displays the From address of S/MIME messages, allowing spoofing of signed email content.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Mail in iOS before 6 displays the From address of S/MIME messages, allowing spoofing of signed email content.
Vulnerability
In Apple iOS before version 6, the Mail application uses the From address of an S/MIME message as the displayed sender, without verifying that it matches the signer's identity [1]. This affects all devices running iOS versions prior to 6, including iPhone 3GS and later, iPod touch (4th generation), and iPad 2 and later.
Exploitation
An attacker can craft an S/MIME-signed email where the From field contains a spoofed sender address that does not correspond to the signer's certificate. When the recipient opens the email, Mail displays the spoofed address as the sender, making the message appear to originate from a trusted source. No additional user interaction is required beyond opening the email.
Impact
A remote attacker can spoof the sender identity of signed emails, bypassing the authenticity guarantees of S/MIME signatures. This can lead to disclosure of sensitive information if the recipient takes actions based on the forged sender, such as replying with confidential data or clicking malicious links.
Mitigation
Upgrade to iOS 6 or later, which was released in September 2012 and addresses this issue [1]. No workaround is available for earlier versions.
AI Insight generated on May 24, 2026. Synthesized from this CVE's description and the cited reference URLs; citations are validated against the source bundle.
Affected products
41cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*+ 39 more
- cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*range: <=5.1.1
- cpe:2.3:o:apple:iphone_os:1.0.0:*:*:*:*:*:*:*
- cpe:2.3:o:apple:iphone_os:1.0.1:*:*:*:*:*:*:*
- cpe:2.3:o:apple:iphone_os:1.0.2:*:*:*:*:*:*:*
- cpe:2.3:o:apple:iphone_os:1.1.0:*:*:*:*:*:*:*
- cpe:2.3:o:apple:iphone_os:1.1.1:*:*:*:*:*:*:*
- cpe:2.3:o:apple:iphone_os:1.1.2:*:*:*:*:*:*:*
- cpe:2.3:o:apple:iphone_os:1.1.3:*:*:*:*:*:*:*
- cpe:2.3:o:apple:iphone_os:1.1.4:*:*:*:*:*:*:*
- cpe:2.3:o:apple:iphone_os:1.1.5:*:*:*:*:*:*:*
- cpe:2.3:o:apple:iphone_os:2.0:*:*:*:*:*:*:*
- cpe:2.3:o:apple:iphone_os:2.0.0:*:*:*:*:*:*:*
- cpe:2.3:o:apple:iphone_os:2.0.1:*:*:*:*:*:*:*
- cpe:2.3:o:apple:iphone_os:2.0.2:*:*:*:*:*:*:*
- cpe:2.3:o:apple:iphone_os:2.1:*:*:*:*:*:*:*
- cpe:2.3:o:apple:iphone_os:2.1.1:*:*:*:*:*:*:*
- cpe:2.3:o:apple:iphone_os:2.2:*:*:*:*:*:*:*
- cpe:2.3:o:apple:iphone_os:2.2.1:*:*:*:*:*:*:*
- cpe:2.3:o:apple:iphone_os:3.0:*:*:*:*:*:*:*
- cpe:2.3:o:apple:iphone_os:3.0.1:*:*:*:*:*:*:*
- cpe:2.3:o:apple:iphone_os:3.1:*:*:*:*:*:*:*
- cpe:2.3:o:apple:iphone_os:3.1.2:*:*:*:*:*:*:*
- cpe:2.3:o:apple:iphone_os:3.1.3:*:*:*:*:*:*:*
- cpe:2.3:o:apple:iphone_os:3.2:*:*:*:*:*:*:*
- cpe:2.3:o:apple:iphone_os:3.2.1:*:*:*:*:*:*:*
- cpe:2.3:o:apple:iphone_os:3.2.2:*:*:*:*:*:*:*
- cpe:2.3:o:apple:iphone_os:4.0:*:*:*:*:*:*:*
- cpe:2.3:o:apple:iphone_os:4.0.1:*:*:*:*:*:*:*
- cpe:2.3:o:apple:iphone_os:4.0.2:*:*:*:*:*:*:*
- cpe:2.3:o:apple:iphone_os:4.1:*:*:*:*:*:*:*
- cpe:2.3:o:apple:iphone_os:4.2.1:*:*:*:*:*:*:*
- cpe:2.3:o:apple:iphone_os:4.2.5:*:*:*:*:*:*:*
- cpe:2.3:o:apple:iphone_os:4.2.8:*:*:*:*:*:*:*
- cpe:2.3:o:apple:iphone_os:4.3.0:*:*:*:*:*:*:*
- cpe:2.3:o:apple:iphone_os:4.3.1:*:*:*:*:*:*:*
- cpe:2.3:o:apple:iphone_os:4.3.2:*:*:*:*:*:*:*
- cpe:2.3:o:apple:iphone_os:4.3.3:*:*:*:*:*:*:*
- cpe:2.3:o:apple:iphone_os:4.3.5:*:*:*:*:*:*:*
- cpe:2.3:o:apple:iphone_os:5.0:*:*:*:*:*:*:*
- cpe:2.3:o:apple:iphone_os:5.0.1:*:*:*:*:*:*:*
- Range: <6
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
4- lists.apple.com/archives/security-announce/2012/Sep/msg00003.htmlnvdVendor Advisory
- support.apple.com/kb/HT5503nvdVendor Advisory
- osvdb.org/85625nvd
- exchange.xforce.ibmcloud.com/vulnerabilities/78719nvd
News mentions
0No linked articles in our index yet.