{"id":"CVE-2026-96951","title":"Improper neutralization of special elements used in a command ('command injection') in Windows Shell allows an unauthorized attacker to bypass a security feature over a network.","summary":"Improper neutralization of special elements used in a command ('command injection') in Windows Shell allows an unauthorized attacker to bypass a security feature over a network.","severity":"high","cvss":8.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","cwe":["CWE-77"],"vendor":"microsoft","product":"outlook_web","affected":["outlook_web","windows_10_1607 < 10.0.14393.9612","windows_10_1809 < 10.0.17763.9376","windows_10_21h2 < 10.0.19044.7807","windows_10_22h2 < 10.0.19045.7807","windows_11_23h2 < 10.0.22631.7652","windows_11_24h2 < 10.0.26100.9711","windows_11_25h2 < 10.0.26200.9711","windows_11_26h1 < 10.0.28000.3231","windows_11_26h2 < 10.0.26300.9711","windows_server_2012 = r2","windows_server_2016 < 10.0.14393.9612","windows_server_2019 < 10.0.17763.9376","windows_server_2022 < 10.0.20348.5761","windows_server_2025 < 10.0.26100.33650"],"patched":["windows_10_1607 10.0.14393.9612","windows_10_1809 10.0.17763.9376","windows_10_21h2 10.0.19044.7807","windows_10_22h2 10.0.19045.7807","windows_11_23h2 10.0.22631.7652","windows_11_24h2 10.0.26100.9711","windows_11_25h2 10.0.26200.9711","windows_11_26h1 10.0.28000.3231","windows_11_26h2 10.0.26300.9711","windows_server_2016 10.0.14393.9612","windows_server_2019 10.0.17763.9376","windows_server_2022 10.0.20348.5761","windows_server_2025 10.0.26100.33650"],"published":"2026-10-13","updated":"2026-10-16","sourceUpdated":"2026-10-16T17:18:00.760","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-96951","references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-96951","label":"secure@microsoft.com"},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-96951","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd","kev","in-the-wild","cve.org","exploit-available"],"epss":0.09813,"epssPercentile":0.95524,"kev":true,"kevDateAdded":"2026-10-13","kevDueDate":"2026-10-16","kevRansomware":false,"exploited":true,"zeroDay":true,"exploitAvailable":true,"ssvc":{"exploitation":"active","automatable":"no","technicalImpact":"total","timestamp":"2026-10-15T22:18:16.873555Z"},"ingestedAt":"2026-10-13T19:43:29.285Z","slug":"CVE-2026-96951","body":"## Overview\n\nImproper neutralization of special elements used in a command ('command injection') in Windows Shell allows an unauthorized attacker to bypass a security feature over a network.\n\n## Affected\n\n- `outlook_web`\n- `windows_10_1607 < 10.0.14393.9612`\n- `windows_10_1809 < 10.0.17763.9376`\n- `windows_10_21h2 < 10.0.19044.7807`\n- `windows_10_22h2 < 10.0.19045.7807`\n- `windows_11_23h2 < 10.0.22631.7652`\n- `windows_11_24h2 < 10.0.26100.9711`\n- `windows_11_25h2 < 10.0.26200.9711`\n- `windows_11_26h1 < 10.0.28000.3231`\n- `windows_11_26h2 < 10.0.26300.9711`\n- `windows_server_2012 = r2`\n- `windows_server_2016 < 10.0.14393.9612`\n- `windows_server_2019 < 10.0.17763.9376`\n- `windows_server_2022 < 10.0.20348.5761`\n- `windows_server_2025 < 10.0.26100.33650`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `windows_10_1607 10.0.14393.9612`\n- `windows_10_1809 10.0.17763.9376`\n- `windows_10_21h2 10.0.19044.7807`\n- `windows_10_22h2 10.0.19045.7807`\n- `windows_11_23h2 10.0.22631.7652`\n- `windows_11_24h2 10.0.26100.9711`\n- `windows_11_25h2 10.0.26200.9711`\n- `windows_11_26h1 10.0.28000.3231`\n- `windows_11_26h2 10.0.26300.9711`\n- `windows_server_2016 10.0.14393.9612`\n- `windows_server_2019 10.0.17763.9376`\n- `windows_server_2022 10.0.20348.5761`\n- `windows_server_2025 10.0.26100.33650`","depth":"abyssal","depthScore":75,"depthScoreParts":{"impact":48.4,"likelihood":2,"exploitation":25,"ransomware":0},"changes":[{"seq":230253,"id":"CVE-2026-96951","ts":1793129086965,"field":"epss","old":"0.01512","new":"0.09813"},{"seq":222774,"id":"CVE-2026-96951","ts":1792104827047,"field":"exploit_available","old":"false","new":"true"},{"seq":219953,"id":"CVE-2026-96951","ts":1791954979947,"field":"zero_day","old":"false","new":"true"},{"seq":219952,"id":"CVE-2026-96951","ts":1791954979947,"field":"exploited","old":"false","new":"true"},{"seq":219951,"id":"CVE-2026-96951","ts":1791954979947,"field":"kev","old":"false","new":"true"}]}