CVE-2026-42895: Microsoft Copilot Tampering Vulnerability
Improper neutralization of special elements used in a command ('command injection') in Microsoft Copilot allows an unauthorized attacker to perform tampering over a network.
CSIRTS triage
- What
- Improper neutralization of command elements allows unauthorized tampering.
- Who is affected
- Users of Microsoft Copilot may be affected.
- Urgency
- Remediation is medium urgency due to the medium severity rating.
- Action
- Apply the relevant patches once available.
AI-assisted analysis generated from the source advisory — verify against the original.
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Details
Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42895
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Low exploitation riskCVE-2026-428950.40% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 32% of all scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-42895 | coverage & exploitation status | NVD · CVE.org |
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