CVE-2026-62882Network attack vector

Spoofing via insufficient credential protection

Published Aug 11, 2026 · Updated Aug 25, 2026

Spoofing in Microsoft Outlook in supported Microsoft Office releases allows remote attackers to impersonate trusted senders over a network. Microsoft has disclosed only that Outlook insufficiently protects credentials; no public advisory, CVE record, or patch note retrieved for CVE-2026-62882 names the storage path, protocol flow, or code path involved. The published CVSS 3.1 vector requires no prior privileges but does require user interaction, and the stated impact is limited to low confidentiality loss consistent with message or identity spoofing rather than code execution or service interruption.

CVSS severity4.3
Medium
EPSS probability0.62%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Spoofing in Microsoft Outlook in supported Microsoft Office releases allows remote attackers to impersonate trusted senders over a network. Microsoft has disclosed only that Outlook insufficiently protects credentials; no public advisory, CVE record, or patch note retrieved for CVE-2026-62882 names the storage path, protocol flow, or code path involved. The published CVSS 3.1 vector requires no prior privileges but does require user interaction, and the stated impact is limited to low confidentiality loss consistent with message or identity spoofing rather than code execution or service interruption.

The record

CVE
CVE-2026-62882
Published
Aug 11, 2026
Updated
Aug 25, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-522
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 11, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 25, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

4.3MicrosoftCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-522Insufficiently Protected Credentials

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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