CVE-2026-42895
highImproper neutralization of special elements used in a command ('command injection') in Microsoft Copilot allows an unauthorized attacker to perform tampering o…
Vendor / product: Microsoft — 365 copilot
Improper neutralization of special elements used in a command ('command injection') in Microsoft Copilot allows an unauthorized attacker to perform tampering over a network.
CVSS
7.5
7.5 (CVSS v3.1)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Severity source: NVD CVSS v3.1 (nvd@nist.gov)
Timeline (UTC)
Published: 2026-06-19 21:16
Modified: 2026-11-03 23:17
NVD status: Analyzed
Last synced 1 day ago
Verified against the source API 2026-11-03 23:24 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
microsoft / 365_copilot all versions
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42895
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42895 secure@microsoft.com
Data sources
NVD CVE API 2.0 — fetched 2026-11-03 23:24 UTC · record ↗