CVE-2026-45648
Windows Active Directory Domain Services Remote Code Execution Vulnerability
No known exploitation. EPSS puts it in the 66th percentile. Fixed versions are out.
No public exploit knownFix2 products2 fixed builds listed below
e.g. OID 1.3.6.1.4.1.25623.1.3.0.11923.0.5094128.494846484650485152564653505354
What to do
Find your product and version, then upgrade to the build on the right.
- Microsoft Windows Server 2022Affected: ≥ 10.0.20348.0, < 10.0.20348.5256Upgrade to: 10.0.20348.5256Stated by: CVE record
- Microsoft Windows Server 2025Affected: ≥ 10.0.26100.0, < 10.0.26100.32995Upgrade to: 10.0.26100.32995Stated by: CVE record
Versions as the sources state them. Full version matrix after sign-in
What it is
From the CVE record
Stack-based buffer overflow in Active Directory Domain Services allows an authorized attacker to execute code over a network.
In plain language
No plain-language summary for this CVE yet.
Exploitation
Where each signal puts this CVE on the scale from published to confirmed exploited.
- CISA KEV
Not in the catalog. CISA has not confirmed exploitation.
- Public exploits
No public exploit or proof of concept found in the sources we track.
- EPSS
1.1% chance of exploitation activity in the next 30 days, which ranks it in the 66th percentile of scored CVEs.
Exploit Prediction Scoring System, FIRST.org. A probability, not a confirmation.
Lifecycle
8 events over 44 days, from the signal feeds we watch.
- Patch availablerecord updated
- OpenVAS check added
- Patch availablerecord updated
- Publishedweakness classified, att&ck mapped
Affected products
Technical detail
CVSS 3.1 vector
Open in the CVSS calculatorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Scored 8.8 by NVD.
How it is reached
- Attack Vector NetworkExploitable remotely over the network without any special conditions
- Attack Complexity LowNo special conditions — the attack can be reliably reproduced
- Privileges Required LowRequires basic user-level privileges
- User Interaction NoneNo user interaction needed — fully automated exploitation
Scope
- Scope UnchangedImpact is limited to the vulnerable component itself
Impact if exploited
- Confidentiality HighTotal information disclosure — all data in the component is compromised
- Integrity HighTotal loss of integrity — attacker can modify any data in the component
- Availability HighTotal denial of service — the component is completely unavailable
Weaknesses
ATT&CK techniques
Mapped from the weaknesses above (CWE to ATT&CK), not observed in attacks.
- Privilege EscalationT1068Exploitation for Privilege Escalationhigh confidence
Sources
References in the record
In the news
- Microsoft Patch Tuesday for June 2026 — Snort rules and prominent vulnerabilities
- Rapid7
- Microsoft and Adobe Patch Tuesday, June 2026 Security Update Review
- Microsoft June 2026 Patch Tuesday fixes 6 zero-days, 200 flaws
- Microsoft June 2026 Patch Tuesday fixes 3 zero-day, 200 flaws
- Microsoft June 2026 Patch Tuesday - SANS Internet Storm Center
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