How severe is CVE-2018-12469?

CVE-2018-12469 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2018-12469 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-12469?

CVE-2018-12469 primarily affects Microfocus Enterprise Developer. In total, 12 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-12469?

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-2018-12469 published?

CVE-2018-12469 was published on 2018-10-12 and last updated on 2026-06-17.

CVE-2018-12469

CVE-2018-12469 is a high-severity vulnerability in Microfocus Enterprise Developer with a CVSS 3.x base score of 7.5. 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-476.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 1% (60th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-476
Affected product: Microfocus Enterprise Developer
Published: 2018-10-12
Last modified: 2026-06-17

Description

Incorrect handling of an invalid value for an HTTP request parameter by Directory Server (aka Enterprise Server Administration web UI) in Micro Focus Enterprise Developer and Enterprise Server 2.3 Update 2 and earlier, 3.0 before Patch Update 12, and 4.0 before Patch Update 2 causes a null pointer dereference (CWE-476) and subsequent denial of service due to process termination.

Frequently asked questions

What is CVE-2018-12469?: Incorrect handling of an invalid value for an HTTP request parameter by Directory Server (aka Enterprise Server Administration web UI) in Micro Focus Enterprise Developer and Enterprise Server 2.3 Update 2 and earlier, 3.0 before Patch Update 12, and 4.0 before Patch Update 2 causes a null pointer dereference (CWE-476) and subsequent denial of service due to process termination.
How severe is CVE-2018-12469?: CVE-2018-12469 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2018-12469 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-12469?: CVE-2018-12469 primarily affects Microfocus Enterprise Developer. In total, 12 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-12469?: 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-2018-12469 published?: CVE-2018-12469 was published on 2018-10-12 and last updated on 2026-06-17.

References

https://community.microfocus.com/microfocus/mainframe_solutions/enterprise_server/w/knowledge_base/29624/enterprise-server-security-fix-october-2018

Affected products (12)

cpe:2.3:a:microfocus:enterprise_developer:*:*:*:*:*:*:*:*
cpe:2.3:a:microfocus:enterprise_developer:2.3:update1:*:*:*:*:*:*
cpe:2.3:a:microfocus:enterprise_developer:2.3:update2:*:*:*:*:*:*
cpe:2.3:a:microfocus:enterprise_developer:3.0:*:*:*:*:*:*:*
cpe:2.3:a:microfocus:enterprise_developer:4.0:*:*:*:*:*:*:*
cpe:2.3:a:microfocus:enterprise_developer:4.0:update1:*:*:*:*:*:*
cpe:2.3:a:microfocus:enterprise_server:*:*:*:*:*:*:*:*
cpe:2.3:a:microfocus:enterprise_server:2.3:update1:*:*:*:*:*:*
cpe:2.3:a:microfocus:enterprise_server:2.3:update2:*:*:*:*:*:*
cpe:2.3:a:microfocus:enterprise_server:3.0:*:*:*:*:*:*:*
cpe:2.3:a:microfocus:enterprise_server:4.0:*:*:*:*:*:*:*
cpe:2.3:a:microfocus:enterprise_server:4.0:update1:*:*:*:*:*:*

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