How severe is CVE-2019-8394?

CVE-2019-8394 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2019-8394 being actively exploited?

Yes. CVE-2019-8394 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2021-11-03, which means active exploitation has been confirmed. It should be prioritised for remediation.

What products are affected by CVE-2019-8394?

CVE-2019-8394 primarily affects Zohocorp Manageengine Servicedesk Plus. In total, 14 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2019-8394?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.

Does CVE-2019-8394 have an EU (EUVD) identifier?

Yes. CVE-2019-8394 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2019-17784. It is also flagged as exploited in the EUVD (since 2021-11-03).

When was CVE-2019-8394 published?

CVE-2019-8394 was published on 2019-02-17 and last updated on 2026-06-17.

CVE-2019-8394

CVE-2019-8394 is a medium-severity vulnerability in Zohocorp Manageengine Servicedesk Plus with a CVSS 3.x base score of 6.5. It is listed in CISA's Known Exploited Vulnerabilities (KEV) catalog, confirming it has been exploited in the wild (added 2021-11-03). The underlying weakness is classified as CWE-434.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 4.0
EPSS exploit prediction: 64% (99th percentile)
Actively exploited: Yes — listed in CISA KEV (added 2021-11-03)
EU (EUVD) id: EUVD-2019-17784
EU exploitation: Flagged exploited in the ENISA EU Vulnerability Database (since 2021-11-03)
Weakness: CWE-434
Affected product: Zohocorp Manageengine Servicedesk Plus
Published: 2019-02-17
Last modified: 2026-06-17

Description

Zoho ManageEngine ServiceDesk Plus (SDP) before 10.0 build 10012 allows remote attackers to upload arbitrary files via login page customization.

Frequently asked questions

What is CVE-2019-8394?: Zoho ManageEngine ServiceDesk Plus (SDP) before 10.0 build 10012 allows remote attackers to upload arbitrary files via login page customization.
How severe is CVE-2019-8394?: CVE-2019-8394 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2019-8394 being actively exploited?: Yes. CVE-2019-8394 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2021-11-03, which means active exploitation has been confirmed. It should be prioritised for remediation.
What products are affected by CVE-2019-8394?: CVE-2019-8394 primarily affects Zohocorp Manageengine Servicedesk Plus. In total, 14 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2019-8394?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.
Does CVE-2019-8394 have an EU (EUVD) identifier?: Yes. CVE-2019-8394 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2019-17784. It is also flagged as exploited in the EUVD (since 2021-11-03).
When was CVE-2019-8394 published?: CVE-2019-8394 was published on 2019-02-17 and last updated on 2026-06-17.

References

Affected products (14)

cpe:2.3:a:zohocorp:manageengine_servicedesk_plus:*:*:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_servicedesk_plus:10.0.0:-:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_servicedesk_plus:10.0.0:10000:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_servicedesk_plus:10.0.0:10001:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_servicedesk_plus:10.0.0:10002:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_servicedesk_plus:10.0.0:10003:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_servicedesk_plus:10.0.0:10004:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_servicedesk_plus:10.0.0:10005:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_servicedesk_plus:10.0.0:10006:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_servicedesk_plus:10.0.0:10007:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_servicedesk_plus:10.0.0:10008:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_servicedesk_plus:10.0.0:10009:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_servicedesk_plus:10.0.0:10010:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_servicedesk_plus:10.0.0:10011:*:*:*:*:*:*

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