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Public proof of concept

CVE-2020-12116

A public proof of concept exists; no exploitation attested.

  • Published2020-05-07
  • WeaknessCWE-22

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 Stable build before 124196 and Released build before 125125 allows an unauthenticated attacker to read arbitrary files on the server by sending a crafted request.

Timeline

dates in UTC
  1. 2020-05-0720:15CVE publishedNVD
  2. 2026-10-2319:23First public proof of conceptPoC-in-GitHub
  3. 2026-10-2319:23EPSS crossed 10 %FIRST EPSS

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 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-2020-12116?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2020-12116?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≤ 12.3no fix published
12.4= 12.4no fix published
12.5= 12.5no fix published

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

Fix

Advisories and patches

Detection

read 2026-10-23 19:23 UTC
Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
1 repository, unverifiedBeetleChunks/CVE-2020-12116
PoC-in-GitHub

Sources

  • NVDCVSS 3.17.5read 2026-10-23
  • NVDCVSS 2.05read 2026-10-23
  • NVDweakness (CWE)CWE-22read 2026-10-23
  • FIRST EPSSEPSS score97.4 %read 2026-10-23
  • PoC-in-GitHubproof of concept1read 2026-10-23

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Published
2020-05-07
Last Modified
2026-06-17
NVD status
Modified

Frequently asked questions

What is CVE-2020-12116?

Zoho ManageEngine OpManager Stable build before 124196 and Released build before 125125 allows an unauthenticated attacker to read arbitrary files on the server by sending a crafted request.

Is CVE-2020-12116 actively exploited?

Active exploitation of CVE-2020-12116 has not been confirmed. Its EPSS score was 97.4% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2020-12116?

CVE-2020-12116 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

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