How severe is CVE-2020-8509?

CVE-2020-8509 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2020-8509 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 10% (95th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-8509?

CVE-2020-8509 affects Zohocorp Manageengine Desktop Central. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-8509?

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

When was CVE-2020-8509 published?

CVE-2020-8509 was published on 2020-03-30 and last updated on 2026-06-17.

CVE-2020-8509

CVE-2020-8509 is a high-severity vulnerability in Zohocorp Manageengine Desktop Central with a CVSS 3.x base score of 7.5. Its EPSS exploit-prediction score of 10% places it in the 95th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-306.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 10% (95th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-306
Affected product: Zohocorp Manageengine Desktop Central
Published: 2020-03-30
Last modified: 2026-06-17

Description

Zoho ManageEngine Desktop Central before 10.0.483 allows unauthenticated users to access PDFGenerationServlet, leading to sensitive information disclosure.

Frequently asked questions

What is CVE-2020-8509?: Zoho ManageEngine Desktop Central before 10.0.483 allows unauthenticated users to access PDFGenerationServlet, leading to sensitive information disclosure.
How severe is CVE-2020-8509?: CVE-2020-8509 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2020-8509 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 10% (95th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-8509?: CVE-2020-8509 affects Zohocorp Manageengine Desktop Central. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-8509?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2020-8509 published?: CVE-2020-8509 was published on 2020-03-30 and last updated on 2026-06-17.

References

https://www.manageengine.com/products/desktop-central/unauthenticated-servlet-access.html

Affected products (1)

cpe:2.3:a:zohocorp:manageengine_desktop_central:*:*:*:*:*:*:*:*

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