{"id":"CVE-2009-2523","aliases":["EUVD-2009-2518","GHSA-rchx-q8j2-p9fp"],"status":"published","title":"The License Logging Server (llssrv.exe) in Microsoft Windows 2000 SP4 allows remote attackers to...","description":"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.\"","severity":{"version":"2.0","score":10,"vector":"AV:N/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.26456,"percentile":0.98022,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-119","CWE-125","CWE-787"],"published":"2009-11-11T19:00:00Z","modified":"2026-06-16T23:09:37Z","products":[{"vendor":"microsoft","product":"windows_2000"}],"references":[{"url":"http://www.us-cert.gov/cas/techalerts/TA09-314A.html","tags":["third-party-advisory","x_refsource_CERT","x_transferred","Third Party Advisory","US Government Resource"]},{"url":"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6300","tags":["vdb-entry","signature","x_refsource_OVAL","x_transferred","Broken Link"]},{"url":"https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-064","tags":["vendor-advisory","x_refsource_MS","x_transferred","Mitigation","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2009-2523"},{"url":"https://github.com/advisories/GHSA-rchx-q8j2-p9fp"}],"sources":{"cve":[{"id":"CVE-2009-2523","description":"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.\"","status":"published","published":"2009-11-11T19:00:00Z","modified":"2024-08-07T05:52:14.833Z","updated_at":"2026-11-02T14:33:23.041383Z"}],"euvd":[{"id":"EUVD-2009-2518","description":"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.\"","status":"published","published":"2009-11-11T19:00:00Z","modified":"2024-08-07T05:52:14Z","updated_at":"2026-11-03T01:39:17.005545Z"}],"ghsa":[{"id":"GHSA-rchx-q8j2-p9fp","title":"The License Logging Server (llssrv.exe) in Microsoft Windows 2000 SP4 allows remote attackers to...","description":"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.\"","status":"published","published":"2022-05-02T03:36:05Z","modified":"2026-03-14T05:08:35Z","cwes":["CWE-119","CWE-125"],"updated_at":"2026-11-02T15:06:37.566427Z"}],"nvd":[{"id":"CVE-2009-2523","description":"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.\"","status":"published","published":"2009-11-11T19:30:00.407Z","modified":"2026-06-16T23:09:37.93Z","cvss":[{"version":"2.0","score":10,"vector":"AV:N/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-125","CWE-787"],"updated_at":"2026-11-02T14:01:37.939838Z"}]}}