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Public proof of conceptFix available

CVE-2018-1821

A public proof of concept exists; no exploitation attested.

  • Published2018-12-13
  • Fixed in8.9.2.1 · 8.8.1.3 · 8.7.1.2 · 8.6.0.3
  • WeaknessCWE-611

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

IBM Operational Decision Management 8.5, 8.6, 8.7, 8.8, and 8.9 is vulnerable to a XML External Entity Injection (XXE) attack when processing XML data. A remote attacker could exploit this vulnerability to expose sensitive information or consume memory resources. IBM X-Force ID: 150170.

Timeline

dates in UTC
  1. 2018-12-19Exploit-DB entryExploit-DB

Observed activity

isMalicious corpus · updated 2026-11-04 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-2018-1821?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2018-1821?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Ibm operational decision manager
BranchAffectedFixed in
8.9≥ 8.9.0.0, < 8.9.2.18.9.2.1
8.8≥ 8.8.0.0, < 8.8.1.38.8.1.3
8.7≥ 8.7.0.0, < 8.7.1.28.7.1.2
8.6≥ 8.6.0.0, < 8.6.0.38.6.0.3

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

Fix

  1. Update Ibm operational decision manager to 8.9.2.1 · 8.8.1.3 · 8.7.1.2 · 8.6.0.3

Advisories and patches

Detection

read 2026-11-03 22:42 UTC
Nuclei template
none so far
ProjectDiscovery
Exploit-DB
EDB-46017
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Published
2018-12-13
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-j898-7mvf-jvmr

Frequently asked questions

What is CVE-2018-1821?

IBM Operational Decision Management 8.5, 8.6, 8.7, 8.8, and 8.9 is vulnerable to a XML External Entity Injection (XXE) attack when processing XML data. A remote attacker could exploit this vulnerability to expose sensitive information or consume memory resources. IBM X-Force ID: 150170.

Is CVE-2018-1821 actively exploited?

Active exploitation of CVE-2018-1821 has not been confirmed. Its EPSS score was 15.8% on 2026-11-03, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2018-1821?

CVE-2018-1821 has a CVSS v3 base score of 9.1 (CRITICAL severity), with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H.

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