CVE-2026-42824: exploitation status and patch state

CVE-2026-42824 · CVSS 6.5 MEDIUM · EPSS 8%

Improper neutralization of special elements used in a command ('command injection') in M365 Copilot allows an unauthorized attacker to disclose information over a network.

Is CVE-2026-42824 exploited?

• Not in the CISA KEV catalog.
• EPSS puts exploitation in the next 30 days at 8%.
• Public exploit code: none found in monitored sources.

Which products and versions are affected?

No affected package list recorded here yet.

Is there a patch?

No patch identifier recorded here yet.

What PlainSec published about CVE-2026-42824

• Trusted Microsoft Links Can Smuggle Copilot Prompts (2026-06-20)

Primary sources

• NVD record

What this record does not say

• No affected package data.
• No patch identifier.

KEV and EPSS are re-checked daily. Record last updated 2026-08-11.