High severity · published Aug 11, 2026
CVE-2026-16053
Path Traversal
8.5
CVSS
1.8%
EPSS
No
On KEV
Description
Zohocorp ManageEngine M365 Manager Plus and M365 Security Plus versions below 4820 are affected to Authenticated Path Traversal vulnerability in Exchange Online backup module.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
Low
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)1.8% · higher than 78% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MM
ManageEngine M365 Manager Plus · Zohocorp
before 4820 · source: vendor
MM
ManageEngine M365 Security Plus · Zohocorp
before 4820 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-16053
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-16053
www.manageengine.com
https://www.manageengine.com/microsoft-365-management-reporting/CVE-2026-16053.html
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