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CVE-2017-11774 is a security-feature bypass in Microsoft Outlook 2010 SP2, Outlook 2013 SP1 and RT SP1, and Outlook 2016. Outlook's legacy per-folder Home Page feature renders a configured remote page in an Internet Explorer frame. Although Internet Explorer zone restrictions prevent direct creation of dangerous COM objects from that context, an attacker-controlled Home Page can access an Outlook Application object and invoke its CreateObject method to instantiate Wscript.Shell, bypassing those restrictions and executing arbitrary commands. The Home Page setting can be remotely modified through Exchange/MAPI by an actor with compromised mailbox credentials, causing execution when the Outlook client synchronizes and renders or refreshes the affected folder.
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What an attacker gets, and what they’ve been doing with it.
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Patch, then assume compromise.
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No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
12 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A high-severity Microsoft Outlook security-feature-bypass vulnerability that can enable arbitrary command execution.
A security feature bypass vulnerability in Microsoft Outlook that allows remote code execution via maliciously set WebView home pages.
A Microsoft Outlook remote code execution vulnerability included in the leaked exploit payloads.
A vulnerability included in FireEye's list of 16 CVEs for which protections can help limit the effectiveness of stolen red-team tools.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.