🛡️ CVE-2026-45648 — windows-server-2022

🟠 CVSS 8.8 — High ✅ No Known Exploit CWE-121 NVD
8.8
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

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

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability high.

Weakness class

CVE-2026-45648 is classified as CWE-121: Stack-based Buffer Overflow. An oversized write to a stack buffer overwrites saved state such as return addresses, which can redirect execution.

Affected software

CVE-2026-45648 is recorded against 3 packages.

  • unknown
  • windows-server-2022 (fixed in 10.0.20348.5256)
  • windows-server-2025 (fixed in 10.0.26100.32995)

Timeline and source

Published on 9 June 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

msrc.microsoft.com

Details

Severity HIGH
CVSS Score 8.8
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE CWE-121
Public Exploit ✅ No
Source NVD
Published 2026-06-09
Updated 2026-08-11
Modified 2026-06-09
Fix URL N/A

Affected Packages

Software From version Fixed in
unknown — —
windows-server-2022 — 10.0.20348.5256
windows-server-2025 — 10.0.26100.32995

Similar Threats

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