Email Spoofing Vulnerability in Zimbra Collaboration
CVE-2023-26562

6.5MEDIUM

Key Information:

Vendor

Zimbra

Status
Collaboration
Vendor
CVE Published:
13 February 2024

What is CVE-2023-26562?

A security issue affects Zimbra Collaboration Suite (ZCS) versions 8.8.15 and 9.0, whereby closed accounts that have two-factor authentication (2FA) enabled and use generated passwords are able to send email messages. This flaw can lead to unauthorized email transmissions, posing risks for organizations and individuals relying on Zimbra's email services. The vulnerability allows for potential misuse of these closed accounts, making it critical for users to ensure appropriate security measures are in place and to monitor for any unauthorized activity.

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References

https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories
https://wiki.zimbra.com/wiki/Security_Center
https://wiki.zimbra.com/wiki/Zimbra_Responsible_Disclosur...

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
High
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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