CVE-2026-24299
Medium5.3Microsoft 365 Copilot: M365 Copilot Information Disclosure Vulnerabilitytitle from the CVE record
Improper neutralization of special elements used in a command ('command injection') in M365 Copilot allows an unauthorized attacker to disclose information over a network.
- CVSS
- 5.3v3.1
- EPSS (exploit probability)
- 0.7%55th pct
- CISA KEV
- Not listed
EPSS trendFIRST daily scores, last 90 days
Daily values
| Score date | EPSS | Percentile |
|---|---|---|
| 2026-10-26 | 0.7% | 54.5% |
| 2026-10-25 | 0.7% | 54.5% |
| 2026-10-24 | 0.7% | 50.9% |
| 2026-10-23 | 0.7% | 50.9% |
| 2026-10-22 | 0.7% | 50.9% |
| 2026-10-21 | 0.7% | 50.8% |
| 2026-10-20 | 0.7% | 50.6% |
| 2026-10-19 | 0.7% | 50.6% |
| 2026-10-18 | 0.7% | 50.5% |
| 2026-10-17 | 0.7% | 50.5% |
| 2026-10-16 | 0.7% | 50.5% |
| 2026-10-15 | 0.6% | 49.9% |
| 2026-10-14 | 0.6% | 49.8% |
| 2026-10-13 | 0.6% | 49.6% |
| 2026-10-12 | 0.6% | 49.5% |
| 2026-10-11 | 0.6% | 49.5% |
| 2026-10-10 | 0.6% | 49.5% |
| 2026-10-09 | 0.6% | 49.5% |
| 2026-10-08 | 0.6% | 49.4% |
| 2026-10-07 | 0.6% | 49.4% |
| 2026-10-06 | 0.6% | 49.3% |
| 2026-10-05 | 0.6% | 49.2% |
| 2026-10-04 | 0.6% | 49.2% |
| 2026-10-03 | 0.6% | 49.2% |
| 2026-10-02 | 0.6% | 49.2% |
| 2026-10-01 | 0.6% | 49.1% |
| 2026-09-30 | 0.6% | 49.0% |
| 2026-09-29 | 0.6% | 49.0% |
| 2026-09-27 | 0.6% | 48.9% |
| 2026-09-26 | 0.6% | 48.9% |
| 2026-09-25 | 0.6% | 48.8% |
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N
Learn
Why it happened and what stops it
How attackers use it (ATT&CK)
Typical for this kind of weakness across CISA KEV exploits (CTID), not specific to this CVE.
How it's exploited
What the attacker gets
Controls that mitigate it (NIST SP 800-53)
- AC-3Access EnforcementAccess Control · mitigates 8 of these techniques
- AC-6Least PrivilegeAccess Control · mitigates 7 of these techniques
- SI-4System MonitoringSystem and Information Integrity · mitigates 7 of these techniques
- AC-2Account ManagementAccess Control · mitigates 6 of these techniques
- CM-6Configuration SettingsConfiguration Management · mitigates 6 of these techniques
- CA-7Continuous MonitoringSecurity Assessment and Authorization · mitigates 5 of these techniques
Affected products
- microsoft 365 copilot