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CVE-2026-23669 is an authenticated remote code execution vulnerability in the Windows Print Spooler service, also described as affecting the RPC runtime used by that component. The flaw is characterized as a use-after-free condition that can be triggered by sending specially crafted network messages or traffic to a vulnerable system with the Print Spooler service running. Successful exploitation can lead to memory corruption and arbitrary code execution on the target host. Reporting around the issue notes behavioral similarity to the 2021 PrintNightmare class of spooler attacks, in that a privileged or authorized attacker can remotely induce code execution without requiring user interaction.
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What an attacker gets, and what they’ve been doing with it.
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No public exploit code observed for this vulnerability.
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Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
9 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A Windows Print Spooler remote code execution vulnerability where an authenticated attacker can send specially crafted network traffic to trigger memory corruption and potentially execute code on the target system.
An authenticated remote code execution vulnerability in the Windows Print Spooler service.
A remote code execution vulnerability in the Windows print queue/spooler-like component, similar in behavior to PrintNightmare, allowing network-based code execution by a privileged attacker without user interaction.
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.