{"id":"CVE-2011-4512","aliases":["EUVD-2011-4438","GHSA-m278-843w-6753"],"status":"published","title":"CRLF injection vulnerability in the HMI web server in Siemens WinCC flexible 2004, 2005, 2007,...","description":"CRLF injection vulnerability in the HMI web server in Siemens WinCC flexible 2004, 2005, 2007, and 2008 before SP3; WinCC V11 (aka TIA portal) before SP2 Update 1; the TP, OP, MP, Comfort Panels, and Mobile Panels SIMATIC HMI panels; WinCC V11 Runtime Advanced; and WinCC flexible Runtime allows remote attackers to inject arbitrary HTTP headers and conduct HTTP response splitting attacks via unspecified vectors.","severity":{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.0161,"percentile":0.76097,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-94"],"published":"2012-02-03T20:00:00Z","modified":"2026-06-16T23:34:58Z","products":[{"vendor":"siemens","product":"simatic_hmi_panels"},{"vendor":"siemens","product":"wincc"},{"vendor":"siemens","product":"wincc_flexible"},{"vendor":"siemens","product":"wincc_flexible_runtime"},{"vendor":"siemens","product":"wincc_runtime_advanced"}],"references":[{"url":"http://www.siemens.com/corporate-technology/pool/de/forschungsfelder/siemens_security_advisory_ssa-345442.pdf","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"url":"http://www.us-cert.gov/control_systems/pdf/ICSA-12-030-01.pdf","tags":["x_refsource_MISC","x_transferred","US Government Resource"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2011-4512"},{"url":"https://github.com/advisories/GHSA-m278-843w-6753"}],"sources":{"cve":[{"id":"CVE-2011-4512","description":"CRLF injection vulnerability in the HMI web server in Siemens WinCC flexible 2004, 2005, 2007, and 2008 before SP3; WinCC V11 (aka TIA portal) before SP2 Update 1; the TP, OP, MP, Comfort Panels, and Mobile Panels SIMATIC HMI panels; WinCC V11 Runtime Advanced; and WinCC flexible Runtime allows remote attackers to inject arbitrary HTTP headers and conduct HTTP response splitting attacks via unspecified vectors.","status":"published","published":"2012-02-03T20:00:00Z","modified":"2024-09-16T18:09:01.418Z","updated_at":"2026-11-02T14:35:37.671707Z"}],"euvd":[{"id":"EUVD-2011-4438","description":"CRLF injection vulnerability in the HMI web server in Siemens WinCC flexible 2004, 2005, 2007, and 2008 before SP3; WinCC V11 (aka TIA portal) before SP2 Update 1; the TP, OP, MP, Comfort Panels, and Mobile Panels SIMATIC HMI panels; WinCC V11 Runtime Advanced; and WinCC flexible Runtime allows remote attackers to inject arbitrary HTTP headers and conduct HTTP response splitting attacks via unspecified vectors.","status":"published","published":"2012-02-03T20:00:00Z","modified":"2024-09-16T18:09:01Z","updated_at":"2026-11-03T00:55:35.370742Z"}],"ghsa":[{"id":"GHSA-m278-843w-6753","title":"CRLF injection vulnerability in the HMI web server in Siemens WinCC flexible 2004, 2005, 2007,...","description":"CRLF injection vulnerability in the HMI web server in Siemens WinCC flexible 2004, 2005, 2007, and 2008 before SP3; WinCC V11 (aka TIA portal) before SP2 Update 1; the TP, OP, MP, Comfort Panels, and Mobile Panels SIMATIC HMI panels; WinCC V11 Runtime Advanced; and WinCC flexible Runtime allows remote attackers to inject arbitrary HTTP headers and conduct HTTP response splitting attacks via unspecified vectors.","status":"published","published":"2022-05-17T05:34:42Z","modified":"2023-01-28T05:04:17Z","cwes":["CWE-94"],"updated_at":"2026-11-02T14:44:08.629318Z"}],"nvd":[{"id":"CVE-2011-4512","description":"CRLF injection vulnerability in the HMI web server in Siemens WinCC flexible 2004, 2005, 2007, and 2008 before SP3; WinCC V11 (aka TIA portal) before SP2 Update 1; the TP, OP, MP, Comfort Panels, and Mobile Panels SIMATIC HMI panels; WinCC V11 Runtime Advanced; and WinCC flexible Runtime allows remote attackers to inject arbitrary HTTP headers and conduct HTTP response splitting attacks via unspecified vectors.","status":"published","published":"2012-02-03T20:55:01.453Z","modified":"2026-06-16T23:34:58.02Z","cvss":[{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-94"],"updated_at":"2026-11-02T14:02:12.272092Z"}]}}