CVE-2009-2523
The License Logging Server (llssrv.exe) in Microsoft Windows 2000 SP4 allows remote attackers to...
The License Logging Server (llssrv.exe) in Microsoft Windows 2000 SP4 allows remote attackers to execute arbitrary code via an RPC message containing a string without a null terminator, which triggers a heap-based buffer overflow in the LlsrLicenseRequestW method, aka "License Logging Server Heap Overflow Vulnerability."
Exploit likelihood
What each source reports
NVD Score used
The License Logging Server (llssrv.exe) in Microsoft Windows 2000 SP4 allows remote attackers to execute arbitrary code via an RPC message containing a string without a null terminator, which triggers a heap-based buffer overflow in the LlsrLicenseRequestW method, aka "License Logging Server Heap Overflow Vulnerability."
- Record
CVE-2009-2523- CVSS 2.0
- 10.0 High
AV:N/AC:L/Au:N/C:C/I:C/A:C - Weakness
- CWE-125, CWE-787
- Updated
- 2026-11-02
CVE List No score
The License Logging Server (llssrv.exe) in Microsoft Windows 2000 SP4 allows remote attackers to execute arbitrary code via an RPC message containing a string without a null terminator, which triggers a heap-based buffer overflow in the LlsrLicenseRequestW method, aka "License Logging Server Heap Overflow Vulnerability."
- Record
CVE-2009-2523- Updated
- 2026-11-02
EUVDEUVD-2009-2518 No score
The License Logging Server (llssrv.exe) in Microsoft Windows 2000 SP4 allows remote attackers to execute arbitrary code via an RPC message containing a string without a null terminator, which triggers a heap-based buffer overflow in the LlsrLicenseRequestW method, aka "License Logging Server Heap Overflow Vulnerability."
- Record
EUVD-2009-2518- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-rchx-q8j2-p9fp No score
The License Logging Server (llssrv.exe) in Microsoft Windows 2000 SP4 allows remote attackers to...
The License Logging Server (llssrv.exe) in Microsoft Windows 2000 SP4 allows remote attackers to execute arbitrary code via an RPC message containing a string without a null terminator, which triggers a heap-based buffer overflow in the LlsrLicenseRequestW method, aka "License Logging Server Heap Overflow Vulnerability."
- Record
GHSA-rchx-q8j2-p9fp- Weakness
- CWE-119, CWE-125
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2009-2523 is a high vulnerability (CVSS 10.0) in Microsoft Windows 2000, published November 11, 2009. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 26.5%, the 98th percentile. No source names a fixed version.