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Exploitation reportedNot in CISA KEV yetFix available

CVE-2018-17283

Exploitation reported by one source. First attested on 2023-10-19 by GCVE · shadowserver.

  • Published2018-09-21
  • Fixed in12.3
  • WeaknessCWE-89

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

Zoho ManageEngine OpManager before 12.3 Build 123196 does not require authentication for /oputilsServlet requests, as demonstrated by a /oputilsServlet?action=getAPIKey request that can be leveraged against Firewall Analyzer to add an admin user via /api/json/v2/admin/addUser or conduct a SQL Injection attack via the /api/json/device/setManaged name parameter.

Timeline

dates in UTC
  1. 2018-09-2103:29CVE publishedNVD
  2. 2023-10-1908:51Listed as exploited by GCVEGCVE
  3. 2023-10-1908:51Exploitation first reportedGCVE

Observed activity

isMalicious corpus · updated 2026-11-03 09:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2018-17283?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2018-17283?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Zohocorp manageengine opmanager
BranchAffectedFixed in
12.3< 12.312.3

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

  1. Update Zohocorp manageengine opmanager to 12.3

Advisories and patches

Detection

read 2026-11-02 22:42 UTC
Nuclei template
available
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub
Metasploit modules
none listed
Metasploit Framework

Sources

  • GCVEexploitation2023-10-19
  • NVDCVSS 3.07.5read 2026-10-23
  • NVDCVSS 2.05read 2026-10-23
  • NVDweakness (CWE)CWE-89read 2026-10-23
  • FIRST EPSSEPSS score66.3 %read 2026-11-02
  • ProjectDiscoverydetectionread 2026-11-02

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Published
2018-09-21
Last Modified
2026-06-17
NVD status
Modified

Frequently asked questions

What is CVE-2018-17283?

Zoho ManageEngine OpManager before 12.3 Build 123196 does not require authentication for /oputilsServlet requests, as demonstrated by a /oputilsServlet?action=getAPIKey request that can be leveraged against Firewall Analyzer to add an admin user via /api/json/v2/admin/addUser or conduct a SQL Injection attack via the /api/json/device/setManaged name parameter.

Is CVE-2018-17283 actively exploited?

Active exploitation of CVE-2018-17283 has not been confirmed. Its EPSS score was 66.3% on 2026-11-02, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2018-17283?

CVE-2018-17283 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

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