CVE-2026-61928: Windows Hello Tampering Vulnerability
Cleartext storage of sensitive information in Windows Hello allows an authorized attacker to perform tampering locally.
CSIRTS triage
- What
- Cleartext storage of sensitive information allows local tampering with authentication data.
- Who is affected
- Windows systems using Windows Hello biometric or PIN authentication.
- Urgency
- Medium severity (CVSS 5.5) requiring local access; not currently exploited.
- Action
- Apply the latest Windows security patch addressing CVE-2026-61928.
AI-assisted analysis generated from the source advisory — verify against the original.
⚡ Watch Windows Hello
Get an email when a new Windows Hello advisory drops — max one per day, one-click unsubscribe.
Details
Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-61928
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Low exploitation riskCVE-2026-619280.21% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 12% of all EPSS-scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-61928 | coverage & exploitation status | NVD · CVE.org |
Same CVEs, other sources
How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.
More from Microsoft Security Response Center
- highCVE-2026-70354: .NET Core Remote Code Execution Vulnerability2026-08-11
- highCVE-2026-68792: Microsoft Office Elevation of Privilege Vulnerability2026-08-11
- highCVE-2026-64909: Microsoft Office Remote Code Execution Vulnerability2026-08-11
- highCVE-2026-70130: Microsoft Office Remote Code Execution Vulnerability2026-08-11
- highCVE-2026-66807: Microsoft Office Graphics Component Remote Code Execution Vulnerability2026-08-11