How severe is CVE-2018-1998?

CVE-2018-1998 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-1998 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (33rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-1998?

CVE-2018-1998 affects Ibm Websphere Mq. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-1998?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2018-1998 published?

CVE-2018-1998 was published on 2019-03-11 and last updated on 2026-06-17.

CVE-2018-1998

CVE-2018-1998 is a high-severity vulnerability in Ibm Websphere Mq with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-78.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 7.2
EPSS exploit prediction: 0% (33rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-78
Affected product: Ibm Websphere Mq
Published: 2019-03-11
Last modified: 2026-06-17

Description

IBM WebSphere MQ 8.0.0.0 through 9.1.1 could allow a local user to inject code that could be executed with root privileges. This is due to an incomplete fix for CVE-2018-1792. IBM X-ForceID: 154887.

Frequently asked questions

What is CVE-2018-1998?: IBM WebSphere MQ 8.0.0.0 through 9.1.1 could allow a local user to inject code that could be executed with root privileges. This is due to an incomplete fix for CVE-2018-1792. IBM X-ForceID: 154887.
How severe is CVE-2018-1998?: CVE-2018-1998 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-1998 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (33rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-1998?: CVE-2018-1998 affects Ibm Websphere Mq. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-1998?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2018-1998 published?: CVE-2018-1998 was published on 2019-03-11 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:ibm:websphere_mq:*:*:*:*:*:*:*:*

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