{"id":"CVE-2023-28793","aliases":["EUVD-2023-32428","GHSA-g99m-655w-j95w"],"status":"published","title":"Heap Based Buffer Overflow in Library","description":"Buffer overflow vulnerability in the signelf library used by Zscaler Client Connector on Linux allows Code Injection. This issue affects Zscaler Client Connector for Linux: before 1.3.1.6.","severity":{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00308,"percentile":0.23871,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-787","CWE-94"],"published":"2023-10-23T13:26:08Z","modified":"2026-06-17T05:48:47Z","products":[{"vendor":"zscaler","product":"client connector"},{"vendor":"zscaler","product":"client_connector"}],"references":[{"url":"https://help.zscaler.com/client-connector/client-connector-app-release-summary-2022?applicable_category=Linux\u0026applicable_version=1.3.1\u0026deployment_date=2022-09-19","tags":["x_transferred","Release Notes"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-28793"},{"url":"https://github.com/advisories/GHSA-g99m-655w-j95w"}],"sources":{"cve":[{"id":"CVE-2023-28793","title":"Heap Based Buffer Overflow in Library","description":"Buffer overflow vulnerability in the signelf library used by Zscaler Client Connector on Linux allows Code Injection. This issue affects Zscaler Client Connector for Linux: before 1.3.1.6.","status":"published","published":"2023-10-23T13:26:08.391Z","modified":"2025-02-27T20:39:54.588Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-94"],"updated_at":"2026-11-02T14:35:32.752775Z"}],"euvd":[{"id":"EUVD-2023-32428","description":"Buffer overflow vulnerability in the signelf library used by Zscaler Client Connector on Linux allows Code Injection. This issue affects Zscaler Client Connector for Linux: before 1.3.1.6.","status":"published","published":"2023-10-23T13:26:08Z","modified":"2025-02-27T20:39:54Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T20:53:21.469581Z"}],"ghsa":[{"id":"GHSA-g99m-655w-j95w","title":"Buffer overflow vulnerability in the signelf library used by Zscaler Client Connector on Linux...","description":"Buffer overflow vulnerability in the signelf library used by Zscaler Client Connector on Linux allows Code Injection. This issue affects Zscaler Client Connector for Linux: before 1.3.1.6.\n\n\n","status":"published","published":"2023-10-23T15:30:24Z","modified":"2024-10-17T15:32:10Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-94","CWE-787"],"updated_at":"2026-11-02T14:58:31.969274Z"}],"nvd":[{"id":"CVE-2023-28793","description":"Buffer overflow vulnerability in the signelf library used by Zscaler Client Connector on Linux allows Code Injection. This issue affects Zscaler Client Connector for Linux: before 1.3.1.6.","status":"published","published":"2023-10-23T14:15:09.387Z","modified":"2026-06-17T05:48:47.05Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"},{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"}],"cwes":["CWE-94","CWE-787"],"updated_at":"2026-11-02T14:08:39.058878Z"}]}}