How severe is CVE-2026-14866?

CVE-2026-14866 has a CVSS 3.x base score of 7.7, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2026-14866 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (1st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-14866?

CVE-2026-14866 affects Ibm I Access Client Solutions. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-14866?

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-2026-14866 published?

CVE-2026-14866 was published on 2026-08-12 and last updated on 2026-08-18.

CVE-2026-14866

CVE-2026-14866 is a high-severity vulnerability in Ibm I Access Client Solutions with a CVSS 3.x base score of 7.7. 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-798.

Key facts

Severity: High (CVSS 3.x base score 7.7)
EPSS exploit prediction: 0% (1st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-798
Affected product: Ibm I Access Client Solutions
Published: 2026-08-12
Last modified: 2026-08-18

Description

IBM i Access Client Solutions 1.1.2.0 through 1.1.9.13 is vulnerable to injection of rogue certificate authority due to publicly writeable truststore.

Frequently asked questions

What is CVE-2026-14866?: IBM i Access Client Solutions 1.1.2.0 through 1.1.9.13 is vulnerable to injection of rogue certificate authority due to publicly writeable truststore.
How severe is CVE-2026-14866?: CVE-2026-14866 has a CVSS 3.x base score of 7.7, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2026-14866 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (1st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-14866?: CVE-2026-14866 affects Ibm I Access Client Solutions. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-14866?: 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-2026-14866 published?: CVE-2026-14866 was published on 2026-08-12 and last updated on 2026-08-18.

References

https://www.ibm.com/support/pages/node/7282954

Affected products (1)

cpe:2.3:a:ibm:i_access_client_solutions:*:*:*:*:*:*:*:*

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