VulnerabilityModified
CVE-2026-59118
Improper authorization in Copilot Cowork allows an unauthorized attacker to elevate privileges over a network.
CRITICAL 9.3EPSS 0.48%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.48%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Improper authorization in Copilot Cowork allows an unauthorized attacker to elevate privileges over a network.
- CVSS 3.1
- 9.3 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
- EPSS
- 0.48% probability · 40th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-285
- Affected
- microsoft/power apps
- Source
- secure@microsoft.com
References
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.