CVE-2026-45648 — HIGH (8.8)

Q: What is CVE-2026-45648?

CVE-2026-45648 is a vulnerability with a CVSS score of 8.8 (HIGH). Stack-based buffer overflow in Active Directory Domain Services allows an authorized attacker to execute code over a network.

Q: How severe is CVE-2026-45648?

CVE-2026-45648 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2026-45648?

Check the references section above for vendor advisories and patch information. Affected products include: Microsoft Windows Server 2022, Microsoft Windows Server 2025.

Vulnerability Description

Stack-based buffer overflow in Active Directory Domain Services allows an authorized attacker to execute code over a network.

CVSS Score

8.8

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Microsoft	Windows Server 2022	< 10.0.20348.5256
Microsoft	Windows Server 2025	< 10.0.26100.32995

Related Weaknesses (CWE)

CWE-121

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45648Vendor Advisory

FAQ

What is CVE-2026-45648?

CVE-2026-45648 is a vulnerability with a CVSS score of 8.8 (HIGH). Stack-based buffer overflow in Active Directory Domain Services allows an authorized attacker to execute code over a network.

How severe is CVE-2026-45648?

CVE-2026-45648 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-45648?

Check the references section above for vendor advisories and patch information. Affected products include: Microsoft Windows Server 2022, Microsoft Windows Server 2025.