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CVE-2026-96185

Microsoft Exchange Online Remote Code Execution Vulnerability

HIGH
7.5
CVSS Score
Published: October 22, 2026 at 09:44 PM UTC
Updated: October 29, 2026 at 03:08 PM UTC
1 product affected across 1 vendorExchange Online

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Severity
HIGH7.5
Exploit prediction
EPSS 0.5%
SSVC
No known exploit

Description

Stack-based buffer overflow in Microsoft Exchange Online allows an authorized attacker to execute code over a network.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

Vendor AdvisoryPatch
Source: cverecord
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-96185

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGHmicrosoft
Vector?

Quick Info

StatusAWAITING ANALYSIS
CWE
CWE-121

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