{"id":"CVE-2002-1747","aliases":["DEBIAN-CVE-2002-1747","EUVD-2002-1726","GHSA-hf68-wq7f-gmhq"],"status":"published","title":"Vtun 2.5b1 does not authenticate forwarded packets, which allows remote attackers to inject data...","description":"Vtun 2.5b1 does not authenticate forwarded packets, which allows remote attackers to inject data into user sessions without detection, and possibly control the data contents via cut-and-paste attacks on ECB.","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":"2026-11-07","score":0.01069,"percentile":0.65022,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"published":"2002-12-31T05:00:00Z","modified":"2026-10-22T23:47:19Z","fixes":[{"ecosystem":"Debian:12","package":"vtun","fixed_in":["2.5b2"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"vtun","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.5b2"}]}]}],"products":[{"vendor":"maxim_krasnyansky","product":"vtun"}],"references":[{"url":"http://seclists.org/bugtraq/2002/Jan/0119.html","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred","web"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/7868","tags":["vdb-entry","x_refsource_XF","x_transferred","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2002-1747"},{"url":"https://github.com/advisories/GHSA-hf68-wq7f-gmhq"},{"url":"https://security-tracker.debian.org/tracker/CVE-2002-1747","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2002-1747","description":"Vtun 2.5b1 does not authenticate forwarded packets, which allows remote attackers to inject data into user sessions without detection, and possibly control the data contents via cut-and-paste attacks on ECB.","status":"published","published":"2005-06-21T04:00:00Z","modified":"2024-08-08T03:34:56.114Z","updated_at":"2026-11-02T14:33:54.641433Z"}],"euvd":[{"id":"EUVD-2002-1726","description":"Vtun 2.5b1 does not authenticate forwarded packets, which allows remote attackers to inject data into user sessions without detection, and possibly control the data contents via cut-and-paste attacks on ECB.","status":"published","published":"2005-06-21T04:00:00Z","modified":"2024-08-08T03:34:56Z","updated_at":"2026-11-03T01:14:54.820731Z"}],"ghsa":[{"id":"GHSA-hf68-wq7f-gmhq","title":"Vtun 2.5b1 does not authenticate forwarded packets, which allows remote attackers to inject data...","description":"Vtun 2.5b1 does not authenticate forwarded packets, which allows remote attackers to inject data into user sessions without detection, and possibly control the data contents via cut-and-paste attacks on ECB.","status":"published","published":"2022-04-30T18:21:47Z","modified":"2023-01-30T05:05:49Z","updated_at":"2026-11-02T14:47:21.568004Z"}],"nvd":[{"id":"CVE-2002-1747","description":"Vtun 2.5b1 does not authenticate forwarded packets, which allows remote attackers to inject data into user sessions without detection, and possibly control the data contents via cut-and-paste attacks on ECB.","status":"published","published":"2002-12-31T05:00:00Z","modified":"2026-06-16T21:59:54.72Z","cvss":[{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:00:43.239725Z"}],"osv":[{"id":"CVE-2002-1747","description":"Vtun 2.5b1 does not authenticate forwarded packets, which allows remote attackers to inject data into user sessions without detection, and possibly control the data contents via cut-and-paste attacks on ECB.","status":"published","published":"2002-12-31T05:00:00Z","modified":"2026-04-10T03:36:03.310745Z","updated_at":"2026-11-02T15:43:55.998148Z"},{"id":"DEBIAN-CVE-2002-1747","description":"Vtun 2.5b1 does not authenticate forwarded packets, which allows remote attackers to inject data into user sessions without detection, and possibly control the data contents via cut-and-paste attacks on ECB.","status":"published","published":"2002-12-31T05:00:00Z","modified":"2026-10-22T23:47:19.29814682Z","updated_at":"2026-11-02T15:45:22.248131Z"}]}}