{"id":"CVE-2026-42824","aliases":["EUVD-2026-34334","GHSA-2h2r-v7gx-3jgh"],"status":"published","title":"M365 Copilot Information Disclosure Vulnerability","description":"Improper neutralization of special elements used in a command ('command injection') in M365 Copilot allows an unauthorized attacker to disclose information over a network.","severity":{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.0764,"percentile":0.94617,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-77"],"published":"2026-06-04T22:00:49Z","modified":"2026-11-10T23:25:18Z","products":[{"vendor":"microsoft","product":"copilot"},{"vendor":"microsoft","product":"microsoft 365 copilot"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42824","tags":["vendor-advisory","patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-42824"},{"url":"https://github.com/advisories/GHSA-2h2r-v7gx-3jgh"}],"sources":{"cve":[{"id":"CVE-2026-42824","title":"M365 Copilot Information Disclosure Vulnerability","description":"Improper neutralization of special elements used in a command ('command injection') in M365 Copilot allows an unauthorized attacker to disclose information over a network.","status":"published","published":"2026-06-04T22:00:49.042Z","modified":"2026-11-10T23:25:18.77Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C","level":"medium","assessor":"cna"}],"cwes":["CWE-77"],"updated_at":"2026-11-11T00:50:10.062046Z"}],"euvd":[{"id":"EUVD-2026-34334","description":"Improper neutralization of special elements used in a command ('command injection') in M365 Copilot allows an unauthorized attacker to disclose information over a network.","status":"published","published":"2026-06-04T22:00:49Z","modified":"2026-11-10T23:25:18Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C","level":"medium"}],"updated_at":"2026-11-11T00:24:45.332412Z"}],"ghsa":[{"id":"GHSA-2h2r-v7gx-3jgh","title":"Improper neutralization of special elements used in a command ('command injection') in M365...","description":"Improper neutralization of special elements used in a command ('command injection') in M365 Copilot allows an unauthorized attacker to disclose information over a network.","status":"published","published":"2026-06-05T00:31:52Z","modified":"2026-06-05T00:32:02Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-77"],"updated_at":"2026-11-02T15:08:33.048787Z"}],"nvd":[{"id":"CVE-2026-42824","description":"Improper neutralization of special elements used in a command ('command injection') in M365 Copilot allows an unauthorized attacker to disclose information over a network.","status":"published","published":"2026-06-04T23:17:32.077Z","modified":"2026-07-23T07:10:00.113Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","level":"medium","assessor":"secondary"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"primary"}],"cwes":["CWE-77"],"updated_at":"2026-11-02T14:12:22.371367Z"}]}}