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CVE-2026-81385 is a deserialization of untrusted data vulnerability in Microsoft Office Publisher. An unauthorized attacker can exploit unsafe processing of attacker-controlled serialized data to execute code over a network on an affected Publisher installation that has not received the September 2026 security update.
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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.
7 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A Microsoft Publisher vulnerability referenced by the September 2026 Nessus plugin. The supplied content does not provide vulnerability mechanics, severity, exploitation status, or remediation details specific to this CVE.
A deserialization-of-untrusted-data vulnerability in Microsoft Office Publisher that permits unauthorized remote code execution.
A deserialization-of-untrusted-data vulnerability in Microsoft Office Publisher that could allow an unauthorized attacker to execute code over a network.
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.