{"id":"CVE-2008-3436","aliases":["EUVD-2008-3422","GHSA-4mcf-r6j9-cvfh"],"status":"published","title":"The GUP generic update process in Notepad++ before 4.8.1 does not properly verify the...","description":"The GUP generic update process in Notepad++ before 4.8.1 does not properly verify the authenticity of updates, which allows man-in-the-middle attackers to execute arbitrary code via a Trojan horse update, as demonstrated by evilgrade and DNS cache poisoning.","severity":{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.0184,"percentile":0.79129,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-94"],"published":"2008-08-01T14:00:00Z","modified":"2026-06-16T22:55:49Z","products":[{"vendor":"notepad\\+\\+","product":"notepad\\+\\+"}],"references":[{"url":"http://www.infobyte.com.ar/down/Francisco%20Amato%20-%20evilgrade%20-%20ENG.pdf","tags":["x_refsource_MISC","x_transferred"]},{"url":"http://www.infobyte.com.ar/down/isr-evilgrade-1.0.0.tar.gz","tags":["x_refsource_MISC","x_transferred"]},{"url":"http://archives.neohapsis.com/archives/bugtraq/2008-07/0250.html","tags":["mailing-list","x_refsource_FULLDISC","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2008-3436"},{"url":"https://github.com/advisories/GHSA-4mcf-r6j9-cvfh"}],"sources":{"cve":[{"id":"CVE-2008-3436","description":"The GUP generic update process in Notepad++ before 4.8.1 does not properly verify the authenticity of updates, which allows man-in-the-middle attackers to execute arbitrary code via a Trojan horse update, as demonstrated by evilgrade and DNS cache poisoning.","status":"published","published":"2008-08-01T14:00:00Z","modified":"2024-09-16T18:13:02.79Z","updated_at":"2026-11-02T14:34:45.504702Z"}],"euvd":[{"id":"EUVD-2008-3422","description":"The GUP generic update process in Notepad++ before 4.8.1 does not properly verify the authenticity of updates, which allows man-in-the-middle attackers to execute arbitrary code via a Trojan horse update, as demonstrated by evilgrade and DNS cache poisoning.","status":"published","published":"2008-08-01T14:00:00Z","modified":"2024-09-16T18:13:02Z","updated_at":"2026-11-03T00:55:34.828317Z"}],"ghsa":[{"id":"GHSA-4mcf-r6j9-cvfh","title":"The GUP generic update process in Notepad++ before 4.8.1 does not properly verify the...","description":"The GUP generic update process in Notepad++ before 4.8.1 does not properly verify the authenticity of updates, which allows man-in-the-middle attackers to execute arbitrary code via a Trojan horse update, as demonstrated by evilgrade and DNS cache poisoning.","status":"published","published":"2022-05-02T00:00:07Z","modified":"2023-01-31T05:07:19Z","cwes":["CWE-94"],"updated_at":"2026-11-02T14:49:11.285449Z"}],"nvd":[{"id":"CVE-2008-3436","description":"The GUP generic update process in Notepad++ before 4.8.1 does not properly verify the authenticity of updates, which allows man-in-the-middle attackers to execute arbitrary code via a Trojan horse update, as demonstrated by evilgrade and DNS cache poisoning.","status":"published","published":"2008-08-01T14:41:00Z","modified":"2026-06-16T22:55:49.617Z","cvss":[{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"cwes":["CWE-94"],"updated_at":"2026-11-02T14:01:27.800088Z"}]}}