CVE-2026-47645Disclosure(microsoft / 365_copilot)

LOWCVSS 8.8 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Patch microsoft 365_copilot systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

Url redirection to untrusted site ('open redirect') in Microsoft 365 Copilot's Business Chat allows an unauthorized attacker to elevate privileges over a network.

0.5/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-601

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

STABLE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • 365_copilot

Threat summary

  • Patch or workaround signal is available
  • 3 mentions across 3 observed days
  • Momentum state: stable

What's happening

  • Patch or workaround mentioned in 1 signal
  • Technical details provided in 2 signals
  • Disclosure: 2 classified signals
  • General: 1 classified signal
  • Peaked 2d ago at 1 mentions (2026-06-19); latest day: 1
  • 3 total mentions across 3 days

Affected systems

Vendors
Products
365_copilot

1 version affected across 1 product

Deep dive

Activity timeline3 mentions / 3d
00111Mentions · 2026-06-19: 1Mentions · 2026-06-20: 1Mentions · 2026-06-26: 1Patch / Workaround · 2026-06-20: 1Technical Details · 2026-06-19: 1Technical Details · 2026-06-20: 106-1906-2006-26
Signal classification2 categories
Disclosure
266.7%
General
133.3%
Referenced assets3 URLs
Classification over time
DateTotalLabels
2026-06-191
Disclosure1
2026-06-201
Disclosure1
2026-06-261
General1
Full discourse3 posts
  • MalwareObserver@MalwareObserver
    General

    🐛 VULNERABILITIES CVE Notify: 🚨 [CVE-2026-47645](https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-47645) Url redire... https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-47645 #Vulnerability #CVE #ZeroDay

    Post summary

    A brief notice shares a link to the Microsoft Security Response Center page for CVE‑2026‑47645, but no detailed information, exploitation evidence, or patch details are included.

    0000040
    6 followersView on X
  • Hugo | DevOps | Cybersecurity 🇱🇻@HugoValters
    Disclosure

    #CVE-2026-47645 - Open redirect in #Microsoft 365 #Copilot #CVSS 8.8. Privilege escalation via untrusted URL redirection. No patch available Monitor activity and restrict access. #CVEAlert #cybersecurity #infosec #hackers #developer #linux #ubuntu #debian https://www.valtersit.com/cve/CVE-2026-47645

    Post summary

    The post announces CVE‑2026‑47645 as an open‑redirect/privilege‑escalation flaw in Microsoft 365 Copilot, noting a CVSS score of 8.8 and the absence of a patch while advising monitoring and access restrictions.

    0000051
    951 followersView on X
  • CVE@CVEnew
    Disclosure

    CVE-2026-47645 Url redirection to untrusted site ('open redirect') in Microsoft 365 Copilot's Business Chat allows an unauthorized attacker to elevate privileges over a network. https://www.cve.org/CVERecord?id=CVE-2026-47645

    Post summary

    The post announces the new CVE-2026-47645, describing it as an open redirect in Microsoft 365 Copilot that can lead to privilege elevation, but offers no PoC, exploit code, or patch details.

    00000191
    57.6K followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
Appmicrosoft365_copilot---

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