{"id":"CVE-2026-21256","aliases":["EUVD-2026-7325","GHSA-wr95-24gv-jx75"],"status":"published","title":"GitHub Copilot and Visual Studio Remote Code Execution Vulnerability","description":"Improper neutralization of special elements used in a command ('command injection') in GitHub Copilot and Visual Studio allows an unauthorized attacker to execute code over a network.","severity":{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.01159,"percentile":0.67519,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-77","CWE-94"],"published":"2026-02-10T17:51:38Z","modified":"2026-08-19T16:26:08Z","products":[{"vendor":"microsoft","product":"microsoft visual studio 2022 version 17.14"},{"vendor":"microsoft","product":"microsoft visual studio 2026 version 18.3"},{"vendor":"microsoft","product":"visual_studio_2022"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21256","tags":["vendor-advisory","patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-21256"},{"url":"https://github.com/advisories/GHSA-wr95-24gv-jx75"}],"sources":{"cve":[{"id":"CVE-2026-21256","title":"GitHub Copilot and Visual Studio Remote Code Execution Vulnerability","description":"Improper neutralization of special elements used in a command ('command injection') in GitHub Copilot and Visual Studio allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-02-10T17:51:38.364Z","modified":"2026-08-19T16:26:08.276Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high","assessor":"cna"}],"cwes":["CWE-77","CWE-94"],"updated_at":"2026-11-02T13:41:53.237769Z"}],"euvd":[{"id":"EUVD-2026-7325","description":"Improper neutralization of special elements used in a command ('command injection') in GitHub Copilot and Visual Studio allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-02-10T17:51:38Z","modified":"2026-08-19T16:26:08Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high"}],"updated_at":"2026-11-02T18:01:44.172516Z"}],"ghsa":[{"id":"GHSA-wr95-24gv-jx75","title":"Improper neutralization of special elements used in a command ('command injection') in GitHub...","description":"Improper neutralization of special elements used in a command ('command injection') in GitHub Copilot and Visual Studio allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-02-10T18:30:41Z","modified":"2026-02-10T18:30:50Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-77"],"updated_at":"2026-11-02T15:06:07.875228Z"}],"nvd":[{"id":"CVE-2026-21256","description":"Improper neutralization of special elements used in a command ('command injection') in GitHub Copilot and Visual Studio allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-02-10T18:16:27.33Z","modified":"2026-06-17T10:18:22.543Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-77","CWE-94"],"updated_at":"2026-11-02T14:12:05.52517Z"}]}}