# CVE-2026-77887

## Summary

- **CVE ID:** CVE-2026-77887
- **Severity:** MEDIUM
- **CVSS Score:** 6.4 (CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)
- **CWE:** CWE-125
- **Published:** Sep 8, 2026
- **Last Modified:** Sep 10, 2026

## Description

Out-of-bounds read in Windows DHCP Server allows an authorized attacker to execute code locally.

## Affected Products

- Microsoft — Windows 10 Version 1607 (10.0.14393.0)
- Microsoft — Windows 10 Version 1809 (10.0.17763.0)
- Microsoft — Windows Server 2012 (6.2.9200.0)
- Microsoft — Windows Server 2012 (Server Core installation) (6.2.9200.0)
- Microsoft — Windows Server 2012 R2 (6.3.9600.0)
- Microsoft — Windows Server 2012 R2 (Server Core installation) (6.3.9600.0)
- Microsoft — Windows Server 2016 (10.0.14393.0)
- Microsoft — Windows Server 2016 (Server Core installation) (10.0.14393.0)
- Microsoft — Windows Server 2019 (10.0.17763.0)
- Microsoft — Windows Server 2019 (Server Core installation) (10.0.17763.0)
- Microsoft — Windows Server 2022 (10.0.20348.0)
- Microsoft — Windows Server 2025 (10.0.26100.0)
- Microsoft — Windows Server 2025 (Server Core installation) (10.0.26100.0)

## References

- [CNA](https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-77887)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.21%
- **EPSS Percentile:** 11.6

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._