How severe is CVE-2026-86708?

CVE-2026-86708 has a CVSS 3.x base score of 10.0, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2026-86708 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-86708?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2026-86708 published?

CVE-2026-86708 was published on 2026-09-23 and last updated on 2026-09-24.

CVE-2026-86708

CVE-2026-86708 is a critical-severity vulnerability with a CVSS 3.x base score of 10.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-321.

Key facts

Severity: Critical (CVSS 3.x base score 10.0)
EPSS exploit prediction: 1% (68th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-321
Published: 2026-09-23
Last modified: 2026-09-24

Description

ZohoCorp ManageEngine Applications Manager versions 182200 and below were vulnerable to exposure of a Google Cloud service-account private key in the Applications Manager installer, which could allow an unauthenticated attacker to impersonate the service account and access or modify associated cloud resources.

Frequently asked questions

What is CVE-2026-86708?: ZohoCorp ManageEngine Applications Manager versions 182200 and below were vulnerable to exposure of a Google Cloud service-account private key in the Applications Manager installer, which could allow an unauthenticated attacker to impersonate the service account and access or modify associated cloud resources.
How severe is CVE-2026-86708?: CVE-2026-86708 has a CVSS 3.x base score of 10.0, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2026-86708 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-86708?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2026-86708 published?: CVE-2026-86708 was published on 2026-09-23 and last updated on 2026-09-24.

References

https://www.manageengine.com/products/applications_manager/security-updates/security-updates-cve-2026-86708.html

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