How severe is CVE-2021-20078?

CVE-2021-20078 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability high.

Is CVE-2021-20078 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 60% (99th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-20078?

CVE-2021-20078 primarily affects Zohocorp Manageengine Opmanager. In total, 71 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-20078?

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-2021-20078 published?

CVE-2021-20078 was published on 2021-04-01 and last updated on 2026-06-17.

CVE-2021-20078

CVE-2021-20078 is a critical-severity vulnerability in Zohocorp Manageengine Opmanager with a CVSS 3.x base score of 9.1. Its EPSS exploit-prediction score of 60% places it in the 99th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-22.

Key facts

Severity: Critical (CVSS 3.x base score 9.1)
CVSS v2: 9.4
EPSS exploit prediction: 60% (99th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-22
Affected product: Zohocorp Manageengine Opmanager
Published: 2021-04-01
Last modified: 2026-06-17

Description

Manage Engine OpManager builds below 125346 are vulnerable to a remote denial of service vulnerability due to a path traversal issue in spark gateway component. This allows a remote attacker to remotely delete any directory or directories on the OS.

Frequently asked questions

What is CVE-2021-20078?: Manage Engine OpManager builds below 125346 are vulnerable to a remote denial of service vulnerability due to a path traversal issue in spark gateway component. This allows a remote attacker to remotely delete any directory or directories on the OS.
How severe is CVE-2021-20078?: CVE-2021-20078 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability high.
Is CVE-2021-20078 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 60% (99th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-20078?: CVE-2021-20078 primarily affects Zohocorp Manageengine Opmanager. In total, 71 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-20078?: 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-2021-20078 published?: CVE-2021-20078 was published on 2021-04-01 and last updated on 2026-06-17.

References

https://www.tenable.com/security/research/tra-2021-10

Affected products (71)

cpe:2.3:a:zohocorp:manageengine_opmanager:*:*:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125000:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125002:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125100:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125101:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125102:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125108:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125110:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125111:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125112:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125113:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125114:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125116:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125117:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125118:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125120:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125121:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125123:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125124:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125125:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125136:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125137:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125139:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125140:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125143:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125144:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125145:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125156:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125157:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125158:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125159:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125161:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125163:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125174:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125175:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125176:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125177:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125178:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125180:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125181:*:*:*:*:*:*

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