Loading vulnerability…
CVE-2026-35436 is a local elevation-of-privilege vulnerability in Microsoft Office Click-to-Run caused by insufficient granularity of access control in shared Click-to-Run infrastructure. The flaw affects Click-to-Run-based Microsoft Office deployments and enables a low-privileged authorized local attacker to cross a security boundary from the Office Click-to-Run AppContainer sandbox into the broader host context. Successful exploitation can allow the attacker to escape the contained execution environment and obtain SYSTEM privileges. Microsoft assessed the issue as requiring low privileges, low attack complexity, and no user interaction, with scope changed because exploitation impacts resources outside the vulnerable component’s original security boundary. Traditional MSI-based Office installations are not affected.
Mallory correlates every CVE against your assets, your vendors, and active adversary campaigns. Know which vulnerabilities matter for you, not just which ones are loud.
What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
If you can’t patch tonight, do this now.
Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
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.
3 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A local privilege escalation and AppContainer sandbox escape vulnerability in Microsoft Office Click-to-Run shared infrastructure caused by insufficient access control.
A local elevation of privilege vulnerability in Microsoft Office Click-To-Run caused by insufficient granularity of access control, allowing an authorized attacker to gain elevated privileges, potentially SYSTEM.
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.