GCD AI RADAR
incidents/AIR-2026-1182

CVE-2026-58617: Privilege escalation vulnerability in Microsoft 365 Copilot

Attack on AI2 Disclosed vulnerabilityInfrastructure vulnerability

Microsoft 365 Copilot for iOS contains an improper access control flaw enabling attackers to elevate privileges over the network. A CVE advisory was issued with no known real-world exploitation reported.

disclosed CVENo confirmed exploitation, so this record is tracked as a disclosed vulnerability and not counted as an incident. It moves into the counts if CISA or the vendor confirms exploitation. Why

Details

type
Attack on AI
An AI model, agent or AI-powered product was the thing exploited, abused or leaked.
categories
  • Infrastructure vulnerability
    CVEs and advisories in AI frameworks, inference servers, MCP servers, AI developer tools and hosting stacks.
owasp llm top 10
mitre atlas
no technique for these categories
Both rows are derived from the type and categories (OWASP 2025 edition, ATLAS release 2026.09), not classified per record. How
severity
2 · Disclosed vulnerability
CVE or vendor advisory, patched or patchable, no confirmed exploitation.
targets
Microsoft, Enterprise deployment
products
Microsoft 365 Copilot
incident date
14 Jul 2026
first reported
14 Jul 2026
origin
NVD
Vulnerability record from NVD / the GitHub Advisory Database. This product uses the NVD API but is not endorsed or certified by the NVD.
classifier confidence
0.95 · published at or above 0.80; see the methodology
tags
CVE-2026-58617 · privilege-escalation
record
created 2026-10-18 10:04Z · updated 2026-10-18 10:04Z · json

Sources · 1

  1. 2026-07-14
    CVE-2026-58617: Improper access control in Microsoft 365 Copilot for iOS allows an unauthorized attacker to elevate privileges over a network.
    NVD · nvd.nist.gov/vuln/detail/CVE-2026-58617

Titles and links belong to their publishers. The summary above is written by GCD AI RADAR in its own words; data is CC BY-SA 4.0.

Related incidents