How severe is CVE-2018-18475?

CVE-2018-18475 has a CVSS 3.x base score of 9.8, 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 high.

Is CVE-2018-18475 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 22% (97th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-18475?

CVE-2018-18475 primarily affects Zohocorp Manageengine Opmanager. In total, 143 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-18475?

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-2018-18475 published?

CVE-2018-18475 was published on 2018-10-23 and last updated on 2026-06-17.

CVE-2018-18475

CVE-2018-18475 is a critical-severity vulnerability in Zohocorp Manageengine Opmanager with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 22% places it in the 97th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-434.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 22% (97th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-434
Affected product: Zohocorp Manageengine Opmanager
Published: 2018-10-23
Last modified: 2026-06-17

Description

Zoho ManageEngine OpManager before 12.3 build 123214 allows Unrestricted Arbitrary File Upload.

Frequently asked questions

What is CVE-2018-18475?: Zoho ManageEngine OpManager before 12.3 build 123214 allows Unrestricted Arbitrary File Upload.
How severe is CVE-2018-18475?: CVE-2018-18475 has a CVSS 3.x base score of 9.8, 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 high.
Is CVE-2018-18475 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 22% (97th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-18475?: CVE-2018-18475 primarily affects Zohocorp Manageengine Opmanager. In total, 143 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-18475?: 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-2018-18475 published?: CVE-2018-18475 was published on 2018-10-23 and last updated on 2026-06-17.

References

Affected products (143)

cpe:2.3:a:zohocorp:manageengine_opmanager:12.3:build123001:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.3:build123002:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.3:build123003:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.3:build123004:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.3:build123005:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.3:build123006:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.3:build123007:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.3:build123008:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.3:build123009:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.3:build123010:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.3:build123011:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.3:build123012:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.3:build123013:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.3:build123014:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.3:build123015:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.3:build123021:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.3:build123022:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.3:build123023:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.3:build123024:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.3:build123025:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.3:build123026:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.3:build123027:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.3:build123028:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.3:build123029:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.3:build123030:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.3:build123031:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.3:build123032:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.3:build123033:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.3:build123034:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.3:build123035:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.3:build123036:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.3:build123037:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.3:build123043:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.3:build123044:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.3:build123045:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.3:build123046:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.3:build123047:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.3:build123048:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.3:build123049:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.3:build123050:*:*:*:*:*:*

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