CVE-2026-83782
Microsoft: heap buffer overflow
- Risk score
- 81/100
- CVSS
- 9.8 v3.1
- Exploit chance (30 days)
- 1.0%
- Published
- 13 Oct 2026
Open in the live forecast Today's forecast
What to know
- What it is
- A heap-based buffer overflow in Windows Shell allows an attacker to execute code over a network, potentially leading to code execution, information disclosure, and denial of service.
- Affected
- {'product': 'Windows Shell', 'vendor': 'Microsoft'}
- Fix
- Check the linked advisory for a fix, as none is provided in this record.
- Exploitation
- No known exploitation
Why it is Red
- CVSS 9.8 critical
- Remotely exploitable without logging in
- Named in a government or vendor bulletin
Government and vendor bulletins
References
Original description
Heap-based buffer overflow in Windows Shell allows an unauthorized attacker to execute code over a network.
Last activity 20 Oct 2026. Patch Forecast updates every hour.