CVE-2026-70149

Exposure of sensitive information to an unauthorized actor in Windows Client Side Caching driver…

Risk score: 69/100
CVSS: 8.8 v3.1
Exploit chance (30 days): 0.8%
Published: 13 Oct 2026

Open in the live forecast Today's forecast

What to know

What it is: Exposure of sensitive information to an unauthorized actor in Windows Client Side Caching driver (csc.sys) allows an authorized attacker to disclose information locally.
Affected: See advisory
Fix: Apply the vendor's security update; see the linked advisory.
Exploitation: No known exploitation

Why it is Amber

CVSS 8.8 high
Remotely exploitable without logging in

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70149

Original description

Exposure of sensitive information to an unauthorized actor in Windows Client Side Caching driver (csc.sys) allows an authorized attacker to disclose information locally.

Last activity 13 Oct 2026. Patch Forecast updates every hour.