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CVE-2026-32155 is an elevation-of-privilege vulnerability in Microsoft Desktop Window Manager caused by a use-after-free condition. The flaw arises from improper handling of memory object lifetime within Desktop Window Manager, allowing previously freed memory to be reused in a way that can be influenced during local exploitation. Microsoft classifies the issue as Important. The vulnerability is locally exploitable by an authorized attacker and does not require user interaction. Successful exploitation can result in privilege escalation from a low-privileged context.
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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.
2 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A Desktop Window Manager elevation of privilege vulnerability.
A local elevation of privilege vulnerability in Microsoft Desktop Window Manager caused by a use-after-free condition.
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.