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[NEW] [medium] IBM i: Vulnerability allows bypassing security measures

mediumCVE-2026-4942
A remote, anonymous attacker can exploit a vulnerability in IBM i to bypass security measures.

CSIRTS triage

vendor: IBMAuthentication bypass
What
A remote, anonymous attacker can exploit a vulnerability in IBM i to bypass security measures.
Who is affected
Deployments of IBM i are affected.
Urgency
Remediation is medium due to the potential for security measure bypass.
Action
Apply the latest security updates for IBM i.

AI-assisted analysis generated from the source advisory — verify against the original.

Details

Source
CERT-Bund (BSI) Security Advisories (DE · national-cert · site)
Severity
medium
Published
2026-07-20
Exploitation
Not in CISA KEV at last sync
Language
Machine-translated to English — verify against the original

Original advisory: https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-2402

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2026-4942coverage & exploitation statusNVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

Recent advisories for IBM i

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

More from CERT-Bund (BSI) Security Advisories