Windows Kerberos
CVE-2024-43639 — Windows KDC Proxy Remote Code Execution Vulnerability
Executive Summary
None
Overview
9.8
CVSS CRITICAL
Critical
MS Severity
Not Exploited
MS Exploit Status
Less Likely
MS Exploit Likelihood
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
ATTACK VECTOR
Network
ATTACK COMPLEXITY
Low
PRIVILEGES REQUIRED
None
USER INTERACTION
None
SCOPE
Unchanged
CONFIDENTIALITY
High
INTEGRITY
High
AVAILABILITY
High
EXPLOIT CODE MATURITY
Unproven
REMEDIATION LEVEL
Official Fix
REPORT CONFIDENCE
Confirmed
Temporal Score: 8.5
EPSS Score
0.08749
probability of exploitation in the next 30 days
0.94683 percentile - updated 2026-08-14
View on FIRST.org
Affected Products
9 affected products
| Product | KB Article | Severity | Impact | Restart Required |
|---|---|---|---|---|
| Windows Server 2012 | 5046697 (Monthly Rollup) |
Critical | Remote Code Execution | Yes |
| Windows Server 2012 (Server Core installation) | 5046697 (Monthly Rollup) |
Critical | Remote Code Execution | Yes |
| Windows Server 2012 R2 | 5046682 (Monthly Rollup) |
Critical | Remote Code Execution | Yes |
| Windows Server 2012 R2 (Server Core installation) | 5046682 (Monthly Rollup) |
Critical | Remote Code Execution | Yes |
| Windows Server 2016 | 5046612 (Security Update) |
Critical | Remote Code Execution | Yes |
| Windows Server 2016 (Server Core installation) | 5046612 (Security Update) |
Critical | Remote Code Execution | Yes |
| Windows Server 2019 | 5046615 (Security Update) |
Critical | Remote Code Execution | Yes |
| Windows Server 2019 (Server Core installation) | 5046615 (Security Update) |
Critical | Remote Code Execution | Yes |
| Windows Server 2022 5046616 (Security Update) 5046698 (SecurityHotpatchUpdate) Critical Remote Code Execution 5044281 Base: 9.8 Temporal: 8.5 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C 10.0.20348.2849 10.0.20348.2819 Yes None Windows Server 2022 (Server Core installation) 5046616 (Security Update) 5046698 (SecurityHotpatchUpdate) Critical Remote Code Execution 5044281 Base: 9.8 Temporal: 8.5 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C 10.0.20348.2849 10.0.20348.2819 Yes None Windows Server 2022, 23H2 Edition (Server Core installation) | 5046618 (Security Update) |
Critical | Remote Code Execution | Yes |
Patches
5 patches
| Article | Type | Restart |
|---|---|---|
5046697 |
Monthly Rollup | Yes |
5046682 |
Monthly Rollup | Yes |
5046612 |
Security Update | Yes |
5046615 |
Security Update | Yes |
5046618 |
Security Update | Yes |
Exploits & PoC
No public exploit or PoC has been linked for this CVE yet. When available, references are sourced from public repositories and may be unverified or non-functional — review carefully before use.
Detection Rules
No public Sigma or Nuclei detection rule has been mapped to this CVE yet. Coverage is concentrated on exploited / high-profile vulnerabilities; check SigmaHQ for updates.
Acknowledgments
Wei in Kunlun Lab with Cyber KunLun
k0shl
References
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