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CVE-2024-9157 is a local privilege escalation vulnerability in the Synaptics Audio Effects component, specifically affecting the Synaptics service binaries CxUIUSvc64.exe and CxUIUSvc32.exe. The flaw allows a local authorized attacker to cause a privileged process to load an attacker-controlled DLL. This is a DLL-loading weakness in a high-privilege service context, enabling code controlled by the attacker to execute within that privileged process. The issue was assigned for an end-of-life product so that organizations still running the affected software are aware that it should be removed.
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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.
4 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A Synaptics Audio Effects DLL-loading elevation-of-privilege vulnerability that Microsoft assesses as more likely to be exploited within 30 days; latest Windows builds are reportedly no longer vulnerable.
A Synaptics Service Binaries DLL loading vulnerability listed in the summary table.
DLL loading vulnerability in Synaptics service binaries.
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.