Is CVE-2018-1821 in the CISA KEV catalog?

No. CVE-2018-1821 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2018-1821?

CVE-2018-1821 has a CVSS v3 base score of 7.1 (HIGH).

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

CVE-2018-1821 has an EPSS score of 15.80% (97th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2018-1821?

Upgrade operational decision manager to 8.9.2.1 or later.

CVE & CISA-KEV Catalog

CVE-2018-1821

HIGHEPSS 97th pctl

7.1

CVSS v3

NVD

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.

CWE-611XML External Entity (XXE)

How to fix

Remediation Available

operational decision managerNVD

Affected:>= 8.9.0.0, < 8.9.2.1Fixed in:8.9.2.1CVE-2018-1821derived from NVD

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityNone

AvailabilityLow

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L

Exploit Intelligence

15.80%probability of exploitation in 30 days

97thpercentile

Very high risk: more likely to be exploited than 97% of all known CVEs.

References

Exploit1

exploit-db.com

Vendor Advisory2

Third-Party Advisory1

securityfocus.com

Related Vulnerabilities

Other CWE-611 (XML External Entity (XXE)) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2024-34102	Critical	9.8	100%	KEV	Fix
CVE-2019-9670	Critical	9.8	100%	KEV	Fix
CVE-2022-28219	Critical	9.8	97%	-	-
CVE-2024-22024	High	8.3	95%	-	-
CVE-2024-38653	High	7.5	92%	-	-
CVE-2017-12629	Critical	9.8	92%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.