{"id":"CVE-2011-10015","aliases":["EUVD-2011-5248","GHSA-76gc-6553-pw26"],"status":"published","title":"Cytel Studio \u003c= 9.0 .CY3 File Stack Buffer Overflow","description":"Cytel Studio version 9.0 and earlier is vulnerable to a stack-based buffer overflow triggered by parsing a malformed .CY3 file. The vulnerability occurs when the application copies user-controlled strings into a fixed-size stack buffer (256 bytes) without proper bounds checking. Exploitation allows arbitrary code execution when the crafted file is opened.","severity":{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00549,"percentile":0.46255,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-121"],"published":"2025-08-13T20:33:27Z","modified":"2026-06-16T23:28:28Z","exploits":[{"source":"metasploit","id":"exploit/windows/fileformat/cytel_studio_cy3","title":"Cytel Studio 9.0 (CY3 File) Stack Buffer Overflow","type":"exploit","platform":"Windows","date":"2011-10-02","verified":true,"url":"https://www.rapid7.com/db/modules/exploit/windows/fileformat/cytel_studio_cy3"}],"products":[{"vendor":"cytel inc.","product":"cytel studio"}],"references":[{"url":"https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/fileformat/cytel_studio_cy3.rb","tags":["exploit"]},{"url":"https://www.exploit-db.com/exploits/17930","tags":["exploit"]},{"url":"https://www.exploit-db.com/exploits/18027","tags":["exploit"]},{"url":"http://aluigi.altervista.org/adv/cytel_1-adv.txt","tags":["technical-description","exploit"]},{"url":"https://web.archive.org/web/20110708215826/http://www.cytel.com/Software/LogXact.aspx","tags":["product"]},{"url":"https://web.archive.org/web/20110708215830/http://www.cytel.com/Software/StatXact.aspx","tags":["product"]},{"url":"https://web.archive.org/web/20110301000000*/http://www.cytel.com/Software/StatXact.aspx","tags":["product"]},{"url":"https://www.vulncheck.com/advisories/cytel-studio-cy3-file-stack-buffer-overflow","tags":["third-party-advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2011-10015"},{"url":"https://github.com/advisories/GHSA-76gc-6553-pw26"}],"sources":{"cve":[{"id":"CVE-2011-10015","title":"Cytel Studio \u003c= 9.0 .CY3 File Stack Buffer Overflow","description":"Cytel Studio version 9.0 and earlier is vulnerable to a stack-based buffer overflow triggered by parsing a malformed .CY3 file. The vulnerability occurs when the application copies user-controlled strings into a fixed-size stack buffer (256 bytes) without proper bounds checking. Exploitation allows arbitrary code execution when the crafted file is opened.","status":"published","published":"2025-08-13T20:33:27.825Z","modified":"2026-05-25T23:40:49.685Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H","level":"critical","assessor":"cna"}],"cwes":["CWE-121"],"updated_at":"2026-11-02T14:35:36.252742Z"}],"euvd":[{"id":"EUVD-2011-5248","description":"Cytel Studio version 9.0 and earlier is vulnerable to a stack-based buffer overflow triggered by parsing a malformed .CY3 file. The vulnerability occurs when the application copies user-controlled strings into a fixed-size stack buffer (256 bytes) without proper bounds checking. Exploitation allows arbitrary code execution when the crafted file is opened.","status":"published","published":"2025-08-13T20:33:27Z","modified":"2026-05-25T23:40:49Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H","level":"critical"}],"updated_at":"2026-11-02T18:21:08.174412Z"}],"ghsa":[{"id":"GHSA-76gc-6553-pw26","title":"Cytel Studio version 9.0 and earlier is vulnerable to a stack-based buffer overflow triggered by...","description":"Cytel Studio version 9.0 and earlier is vulnerable to a stack-based buffer overflow triggered by parsing a malformed .CY3 file. The vulnerability occurs when the application copies user-controlled strings into a fixed-size stack buffer (256 bytes) without proper bounds checking. Exploitation allows arbitrary code execution when the crafted file is opened.","status":"published","published":"2025-08-13T21:30:29Z","modified":"2025-08-13T21:30:41Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"critical"}],"cwes":["CWE-121"],"updated_at":"2026-11-02T15:03:16.715076Z"}],"nvd":[{"id":"CVE-2011-10015","description":"Cytel Studio version 9.0 and earlier is vulnerable to a stack-based buffer overflow triggered by parsing a malformed .CY3 file. The vulnerability occurs when the application copies user-controlled strings into a fixed-size stack buffer (256 bytes) without proper bounds checking. Exploitation allows arbitrary code execution when the crafted file is opened.","status":"published","published":"2025-08-13T21:15:28.91Z","modified":"2026-06-16T23:28:28.417Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"critical","assessor":"secondary"}],"cwes":["CWE-121"],"updated_at":"2026-11-02T14:02:12.945371Z"}]}}