CVE-2026-17276
CVE-2026-17276 is a critical-severity vulnerability in Ibm I with a CVSS 3.x base score of 9.6. 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-269.
Key facts
- Severity: Critical (CVSS 3.x base score 9.6)
- EPSS exploit prediction: 0% (18th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-269
- Affected product: Ibm I
- Published:
- Last modified:
Description
IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote authenticated attacker to escalate privileges due to improper authorization in the handling of high-authority threads.
Frequently asked questions
- What is CVE-2026-17276?
- IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote authenticated attacker to escalate privileges due to improper authorization in the handling of high-authority threads.
- How severe is CVE-2026-17276?
- CVE-2026-17276 has a CVSS 3.x base score of 9.6, rated critical severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
- Is CVE-2026-17276 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (18th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-17276?
- CVE-2026-17276 affects Ibm I. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-17276?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- When was CVE-2026-17276 published?
- CVE-2026-17276 was published on 2026-08-12 and last updated on 2026-08-13.
References
Affected products (1)
- cpe:2.3:a:ibm:i:*:*:*:*:*:*:*:*
More vulnerabilities in Ibm I
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