How severe is CVE-2026-13433?

CVE-2026-13433 has a CVSS 3.x base score of 8.3, rated high severity. It is exploitable over an adjacent network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-13433 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (2nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-13433?

CVE-2026-13433 affects Ibm I Access Client Solutions. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-13433?

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-2026-13433 published?

CVE-2026-13433 was published on 2026-08-12 and last updated on 2026-08-18.

CVE-2026-13433

CVE-2026-13433 is a high-severity vulnerability in Ibm I Access Client Solutions with a CVSS 3.x base score of 8.3. 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-494.

Key facts

Severity: High (CVSS 3.x base score 8.3)
EPSS exploit prediction: 0% (2nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-494
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 (ACS) is vulnerable to downloading unverified product code when configured to update from an IBM i. A bad actor could use this vulnerablity to run compromised code on the ACS user's workstation.

Frequently asked questions

What is CVE-2026-13433?: IBM i Access Client Solutions 1.1.2.0 through 1.1.9.13 (ACS) is vulnerable to downloading unverified product code when configured to update from an IBM i. A bad actor could use this vulnerablity to run compromised code on the ACS user's workstation.
How severe is CVE-2026-13433?: CVE-2026-13433 has a CVSS 3.x base score of 8.3, rated high severity. It is exploitable over an adjacent network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-13433 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (2nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-13433?: CVE-2026-13433 affects Ibm I Access Client Solutions. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-13433?: 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-2026-13433 published?: CVE-2026-13433 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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