CVE-2018-12998

CRITICALNVD 6.19.0▲
EchelonGraph scoreMEDIUM confidence

Score elevated to 9.0 because EPSS predicts 98% probability of exploitation within the next 30 days (top 0.1% of all CVEs). NVD baseline CVSS 6.1 retained for reference. Confidence: see factors.

Triggered by: EPSS exploit prediction ≥85%
Sources: epss, ghsa, nvd
Elevated
9.0EG
EchelonGraph verdictPatch this weekExploitation is likely or a public exploit exists.
  • High exploitation likelihood — EPSS 99%
CISA-KEV: Not listedEPSS PROB: 99%CVSS: 6.1Exploit: Elevated riskExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

A reflected Cross-site scripting (XSS) vulnerability in Zoho ManageEngine Netflow Analyzer before build 123137, Network Configuration Manager before build 123128, OpManager before build 123148, OpUtils before build 123161, and Firewall Analyzer before build 123147 allows remote attackers to inject arbitrary web script or HTML via the parameter 'operation' to /servlet/com.adventnet.me.opmanager.servlet.FailOverHelperServlet.

CVSS v3
6.1
EG Score
9.0(medium)
EG Risk
84(Track)
EG Risk 84/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity90% × 45%
Exploitation98% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
99%
EPSS %ILE
100%
KEV
Not listed

Published

June 29, 2018

Last Modified

November 21, 2024

References (8)

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 2× in last 7d / 5× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-09-06 13:43 UTCEPSS rescore
  2. 2026-09-05 15:24 UTCEPSS rescore
  3. 2026-08-28 21:36 UTCEPSS rescore
  4. 2026-08-21 23:44 UTCEPSS rescore
  5. 2026-08-15 01:26 UTCEPSS rescore
  6. 2026-08-08 16:32 UTCEPSS rescore
  7. 2026-08-06 13:42 UTCEPSS rescore
  8. 2026-08-06 13:42 UTCEPSS rescore
  9. 2026-07-23 01:33 UTCEG score recompute
  10. 2026-07-22 21:30 UTCEG score recompute▲ 2.90
  11. 2026-07-22 21:30 UTCGHSA enrichment
  12. 2026-07-06 16:24 UTCEPSS rescore
  13. 2026-07-06 16:24 UTCEPSS rescore
  14. 2026-06-15 17:45 UTCEPSS rescore
  15. 2026-06-12 23:09 UTCEPSS rescore
  16. 2026-06-10 22:16 UTCEPSS rescore
  17. 2026-06-07 15:22 UTCEPSS rescore
  18. 2026-06-07 15:22 UTCEPSS rescore
  19. 2026-06-05 22:45 UTCEPSS rescore
  20. 2026-06-05 22:44 UTCEPSS rescore
  21. 2026-06-05 06:08 UTCEPSS rescore
  22. 2026-06-05 06:08 UTCEPSS rescore
  23. 2026-06-04 13:10 UTCEPSS rescore
  24. 2026-06-04 13:10 UTCEPSS rescore
  25. 2026-06-02 20:11 UTCEPSS rescore
Show 15 more
  1. 2026-06-02 20:11 UTCEPSS rescore
  2. 2026-06-01 13:49 UTCEPSS rescore
  3. 2026-05-31 22:29 UTCEPSS rescore
  4. 2026-05-31 22:28 UTCEPSS rescore
  5. 2026-05-31 00:14 UTCEPSS rescore
  6. 2026-05-31 00:14 UTCEPSS rescore
  7. 2026-05-29 13:41 UTCEPSS rescore
  8. 2026-05-28 13:42 UTCEPSS rescore
  9. 2026-05-28 13:42 UTCEPSS rescore
  10. 2026-05-28 06:12 UTCEG score recompute
  11. 2026-05-28 06:12 UTCGHSA enrichment
  12. 2026-05-27 13:38 UTCEPSS rescore
  13. 2026-05-27 13:38 UTCEPSS rescore
  14. 2026-05-26 13:42 UTCEPSS rescore
  15. 2026-05-26 13:42 UTCEPSS rescore

Publicly available exploits

(1 reference)

Working exploit code is in the public domain. Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Nucleihttp/cves/2018/CVE-2018-12998.yaml
    First seen Jan 1, 2018

    Zoho manageengine - Cross-Site Scripting

    Open source ↗

Frequently asked(5)

What is CVE-2018-12998?
CVE-2018-12998 is a critical vulnerability published on June 29, 2018. A reflected Cross-site scripting (XSS) vulnerability in Zoho ManageEngine Netflow Analyzer before build 123137, Network Configuration Manager before build 123128, OpManager before build 123148, OpUtils before build 123161, and Firewall Analyzer before build 123147 allows remote attackers to inject…
When was CVE-2018-12998 disclosed?
CVE-2018-12998 was first published in the National Vulnerability Database on June 29, 2018, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2018-12998 actively exploited?
CVE-2018-12998 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 99% probability of exploitation in the next 30 days, which ranks it in the top 0.1% of all scored CVEs.
What is the CVSS score of CVE-2018-12998?
CVE-2018-12998 has a CVSS v3 base score of 6.1 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0.
How do I remediate CVE-2018-12998?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-12998, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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