How severe is CVE-2018-1420?

CVE-2018-1420 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2018-1420 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-1420?

CVE-2018-1420 primarily affects Ibm Websphere Portal. In total, 78 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-1420?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2018-1420 published?

CVE-2018-1420 was published on 2018-10-01 and last updated on 2026-06-17.

CVE-2018-1420

CVE-2018-1420 is a medium-severity vulnerability in Ibm Websphere Portal with a CVSS 3.x base score of 5.3. 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-732.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 4.0
EPSS exploit prediction: 1% (68th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-732
Affected product: Ibm Websphere Portal
Published: 2018-10-01
Last modified: 2026-06-17

Description

IBM WebSphere Portal 7.0, 8.0, 8.5, and 9.0 resets access control settings to the out of the box configuration during Combined Cumulative Fix (CF) installation. This can lead to security miss-configuration of the installation. IBM X-Force ID: 138950.

Frequently asked questions

What is CVE-2018-1420?: IBM WebSphere Portal 7.0, 8.0, 8.5, and 9.0 resets access control settings to the out of the box configuration during Combined Cumulative Fix (CF) installation. This can lead to security miss-configuration of the installation. IBM X-Force ID: 138950.
How severe is CVE-2018-1420?: CVE-2018-1420 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2018-1420 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-1420?: CVE-2018-1420 primarily affects Ibm Websphere Portal. In total, 78 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-1420?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-1420 published?: CVE-2018-1420 was published on 2018-10-01 and last updated on 2026-06-17.

References

Affected products (78)

cpe:2.3:a:ibm:websphere_portal:7.0.0.0:*:*:*:*:*:*:*
cpe:2.3:a:ibm:websphere_portal:7.0.0.1:-:*:*:*:*:*:*
cpe:2.3:a:ibm:websphere_portal:7.0.0.1:cf011:*:*:*:*:*:*
cpe:2.3:a:ibm:websphere_portal:7.0.0.1:cf012:*:*:*:*:*:*
cpe:2.3:a:ibm:websphere_portal:7.0.0.1:cf013:*:*:*:*:*:*
cpe:2.3:a:ibm:websphere_portal:7.0.0.1:cf014:*:*:*:*:*:*
cpe:2.3:a:ibm:websphere_portal:7.0.0.1:cf015:*:*:*:*:*:*
cpe:2.3:a:ibm:websphere_portal:7.0.0.1:cf016:*:*:*:*:*:*
cpe:2.3:a:ibm:websphere_portal:7.0.0.1:cf017:*:*:*:*:*:*
cpe:2.3:a:ibm:websphere_portal:7.0.0.1:cf018:*:*:*:*:*:*
cpe:2.3:a:ibm:websphere_portal:7.0.0.1:cf019:*:*:*:*:*:*
cpe:2.3:a:ibm:websphere_portal:7.0.0.1:cf020:*:*:*:*:*:*
cpe:2.3:a:ibm:websphere_portal:7.0.0.2:-:*:*:*:*:*:*
cpe:2.3:a:ibm:websphere_portal:7.0.0.2:cf012:*:*:*:*:*:*
cpe:2.3:a:ibm:websphere_portal:7.0.0.2:cf013:*:*:*:*:*:*
cpe:2.3:a:ibm:websphere_portal:7.0.0.2:cf014:*:*:*:*:*:*
cpe:2.3:a:ibm:websphere_portal:7.0.0.2:cf015:*:*:*:*:*:*
cpe:2.3:a:ibm:websphere_portal:7.0.0.2:cf016:*:*:*:*:*:*
cpe:2.3:a:ibm:websphere_portal:7.0.0.2:cf017:*:*:*:*:*:*
cpe:2.3:a:ibm:websphere_portal:7.0.0.2:cf018:*:*:*:*:*:*
cpe:2.3:a:ibm:websphere_portal:7.0.0.2:cf019:*:*:*:*:*:*
cpe:2.3:a:ibm:websphere_portal:7.0.0.2:cf020:*:*:*:*:*:*
cpe:2.3:a:ibm:websphere_portal:7.0.0.2:cf021:*:*:*:*:*:*
cpe:2.3:a:ibm:websphere_portal:7.0.0.2:cf022:*:*:*:*:*:*
cpe:2.3:a:ibm:websphere_portal:7.0.0.2:cf023:*:*:*:*:*:*
cpe:2.3:a:ibm:websphere_portal:7.0.0.2:cf024:*:*:*:*:*:*
cpe:2.3:a:ibm:websphere_portal:7.0.0.2:cf025:*:*:*:*:*:*
cpe:2.3:a:ibm:websphere_portal:7.0.0.2:cf026:*:*:*:*:*:*
cpe:2.3:a:ibm:websphere_portal:7.0.0.2:cf027:*:*:*:*:*:*
cpe:2.3:a:ibm:websphere_portal:7.0.0.2:cf028:*:*:*:*:*:*
cpe:2.3:a:ibm:websphere_portal:7.0.0.2:cf029:*:*:*:*:*:*
cpe:2.3:a:ibm:websphere_portal:7.0.0.2:cf030:*:*:*:*:*:*
cpe:2.3:a:ibm:websphere_portal:8.0.0.0:-:*:*:*:*:*:*
cpe:2.3:a:ibm:websphere_portal:8.0.0.0:cf01:*:*:*:*:*:*
cpe:2.3:a:ibm:websphere_portal:8.0.0.0:cf02:*:*:*:*:*:*
cpe:2.3:a:ibm:websphere_portal:8.0.0.0:cf03:*:*:*:*:*:*
cpe:2.3:a:ibm:websphere_portal:8.0.0.0:cf04:*:*:*:*:*:*
cpe:2.3:a:ibm:websphere_portal:8.0.0.0:cf05:*:*:*:*:*:*
cpe:2.3:a:ibm:websphere_portal:8.0.0.0:cf06:*:*:*:*:*:*
cpe:2.3:a:ibm:websphere_portal:8.0.0.1:-:*:*:*:*:*:*

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