VDB
CVE-2026-24307
CVE-2026-24307
PUBLISHED
CVSS 9.300000190734863 CRITICAL
Improper validation of specified type of input in M365 Copilot allows an unauthorized attacker to disclose information over a network.
EPSS 0.19% · 41.2th percentile
Risk Scores
CVSS v3.1
9.300000190734863
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N/E:U/RL:O/RC:C
EPSS Score
0.19%
41.2th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| microsoft | 365_copilot | -, - |
| Microsoft | Microsoft 365 Copilot | -, - |
Timeline
- Jan 13, 2026 CVE Published
- Jan 22, 2026 CVE Updated
- Jan 22, 2026 PoC Published
- Jan 23, 2026 EPSS Score
- Jan 23, 2026 PoC Published
- Jan 26, 2026 EPSS Score
- Jan 28, 2026 EPSS Score
- Jan 31, 2026 EPSS Score
- Feb 2, 2026 EPSS Score
- Feb 5, 2026 EPSS Score
- Feb 8, 2026 EPSS Score
- Feb 10, 2026 EPSS Score
References
- M365 Copilot Information Disclosure Vulnerability vendor-advisory
- https://nvd.nist.gov/vuln/detail/CVE-2026-24307 advisory