Vulnerability in Zohocorp ManageEngine M365 Manager Plus (CVE-2026-16053)
Summary
Vulnerability in Zohocorp ManageEngine M365 Manager Plus (CVE-2026-16053). Risk of unauthorized operations or information disclosure.
Original description
The description as published by the source.
Zohocorp ManageEngine M365 Manager Plus and M365 Security Plus versions below 4820 are affected to Authenticated Path Traversal vulnerability in Exchange Online backup module.
Source: NIST National Vulnerability Database NVD GitHub Advisory
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A vulnerability tracked as CVE-2026-16053 has been found in Zohocorp ManageEngine M365 Manager Plus.
Risk of unauthorized operations or information disclosure. CVSS score: 8.5/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "Zohocorp ManageEngine M365 Manager Plus CVE-2026-16053" on the vendor's site.
CVE-2026-16053 (Zohocorp ManageEngine M365 Manager Plus) — CWE-23 / CVSS v3 8.5
Attack vector: remote (network-reachable) / no user interaction
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
A vulnerability (CWE-23) exists in Zohocorp ManageEngine M365 Manager Plus.
Check the vendor advisory for the affected versions of Zohocorp ManageEngine M365 Manager Plus.
Severity: High (CVSS 8.5/10). Risk of unauthorized operations or information disclosure.
Update to the patched release per vendor advisory.
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Audit SBOM/dependencies to find affected services.
Response actions
Concrete steps and command examples for SOC/SRE teams to execute in order
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1Identify exposure identify
Audit SBOM/dependencies for affected components.資産台帳・SBOM・依存マニフェストで Zohocorp ManageEngine M365 Manager Plus を使っているサービスとバージョンを洗い出す。
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2Post-deployment verification verify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。
References
- web manageengine.com
- web nvd.nist.gov
- web github.com