{"id":"CVE-2018-13233","aliases":["EUVD-2018-5182","GHSA-55hc-87j9-4c2v"],"status":"published","title":"The sell function of a smart contract implementation for GSI, an Ethereum token, has an integer...","description":"The sell function of a smart contract implementation for GSI, an Ethereum token, has an integer overflow in which \"amount * sellPrice\" can be zero, consequently reducing a seller's assets.","severity":{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.00988,"percentile":0.62687,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-190"],"published":"2018-07-05T02:00:00Z","modified":"2026-06-17T01:39:05Z","products":[{"vendor":"gsi_project","product":"gsi"}],"references":[{"url":"https://github.com/BlockChainsSecurity/EtherTokens/tree/master/GSI","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://github.com/BlockChainsSecurity/EtherTokens/blob/master/ETHEREUMBLACK/sell%20integer%20overflow.md","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-13233"},{"url":"https://github.com/advisories/GHSA-55hc-87j9-4c2v"}],"sources":{"cve":[{"id":"CVE-2018-13233","description":"The sell function of a smart contract implementation for GSI, an Ethereum token, has an integer overflow in which \"amount * sellPrice\" can be zero, consequently reducing a seller's assets.","status":"published","published":"2018-07-05T02:00:00Z","modified":"2024-08-05T09:00:34.05Z","updated_at":"2026-11-02T14:35:07.01498Z"}],"euvd":[{"id":"EUVD-2018-5182","description":"The sell function of a smart contract implementation for GSI, an Ethereum token, has an integer overflow in which \"amount * sellPrice\" can be zero, consequently reducing a seller's assets.","status":"published","published":"2018-07-05T02:00:00Z","modified":"2024-08-05T09:00:34Z","updated_at":"2026-11-03T02:39:50.070155Z"}],"ghsa":[{"id":"GHSA-55hc-87j9-4c2v","title":"The sell function of a smart contract implementation for GSI, an Ethereum token, has an integer...","description":"The sell function of a smart contract implementation for GSI, an Ethereum token, has an integer overflow in which \"amount * sellPrice\" can be zero, consequently reducing a seller's assets.","status":"published","published":"2022-05-14T03:05:36Z","modified":"2023-02-02T05:07:13Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high"}],"cwes":["CWE-190"],"updated_at":"2026-11-02T14:52:27.395685Z"}],"nvd":[{"id":"CVE-2018-13233","description":"The sell function of a smart contract implementation for GSI, an Ethereum token, has an integer overflow in which \"amount * sellPrice\" can be zero, consequently reducing a seller's assets.","status":"published","published":"2018-07-05T02:29:04.103Z","modified":"2026-06-17T01:39:05.557Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-190"],"updated_at":"2026-11-02T14:04:31.362791Z"}]}}