How severe is CVE-2026-1376?

CVE-2026-1376 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-2026-1376 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-1376?

CVE-2026-1376 affects Ibm I. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-1376?

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.

Does CVE-2026-1376 have an EU (EUVD) identifier?

Yes. CVE-2026-1376 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-12645.

When was CVE-2026-1376 published?

CVE-2026-1376 was published on 2026-03-17 and last updated on 2026-06-17.

CVE-2026-1376

CVE-2026-1376 is a high-severity vulnerability in Ibm I 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-770.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (40th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-12645
Weakness: CWE-770
Affected product: Ibm I
Published: 2026-03-17
Last modified: 2026-06-17

Description

IBM i 7.6 could allow a remote attacker to cause a denial of service using failed authentication connections due to improper allocation of resources.

Frequently asked questions

What is CVE-2026-1376?: IBM i 7.6 could allow a remote attacker to cause a denial of service using failed authentication connections due to improper allocation of resources.
How severe is CVE-2026-1376?: CVE-2026-1376 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-2026-1376 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-1376?: CVE-2026-1376 affects Ibm I. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-1376?: 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.
Does CVE-2026-1376 have an EU (EUVD) identifier?: Yes. CVE-2026-1376 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-12645.
When was CVE-2026-1376 published?: CVE-2026-1376 was published on 2026-03-17 and last updated on 2026-06-17.

References

https://www.ibm.com/support/pages/node/7266422

Affected products (1)

cpe:2.3:o:ibm:i:7.6:*:*:*:*:*:*:*

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