Microsoft Microsoft 365 Copilot's Business Chat

Name: Microsoft Microsoft 365 Copilot's Business Chat
Brand: Microsoft

productEU

A product tracked in the threat graph; the vulnerabilities below are known to affect it.

KEV-listed

public exploit

EPSS ≥ 10%

critical

by severity

0critical3high0medium0low

updated 2026-10-27

vulnerabilities (7)

Related CVEs.

sort

ID	severity	EPSS	exploitable	patched	published	affected
CVE-2026-26129US	—	1.14% (66th)	—	no fix	2026-05-07	2 versions
CVE-2026-26164US	—	0.80% (56th)	—	no fix	2026-05-07	2 versions
CVE-2025-53787US	high7.5	0.71% (53rd)	—	no fix	2025-08-07	—
CVE-2025-53774US	high7.5	0.61% (49th)	—	no fix	2025-08-07	—
CVE-2025-59286US	—	0.57% (47th)	—	no fix	2025-10-09	2 versions
CVE-2025-59272US	—	0.57% (47th)	—	no fix	2025-10-09	2 versions
CVE-2026-78501US	high8.6	0.54% (45th)	—	no fix	2026-09-17	—

The flaw types (CWEs) most of these CVEs share.

CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')5 CVEs
CWE-138Improper Neutralization of Special Elements1 CVEs
CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')1 CVEs
CWE-923Improper Restriction of Communication Channel to Intended Endpoints1 CVEs

Which sources assert this record, and when.

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