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[NEW] [high] Ubuntu Linux (ubuntu-pro-client): Multiple vulnerabilities

highCVE-2026-11386CVE-2026-12391CVE-2026-9494
An attacker can exploit multiple vulnerabilities in the ubuntu-pro-client of Ubuntu Linux to execute arbitrary program code with administrator privileges and disclose confidential information.

CSIRTS triage

What
Multiple vulnerabilities allow an attacker to execute arbitrary program code with administrator privileges and disclose confidential information.
Who is affected
Deployments of Ubuntu Linux with the ubuntu-pro-client.
Urgency
Remediation is urgent due to the high severity and potential for serious impacts including privilege escalation.
Action
Update the ubuntu-pro-client to the latest version.

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

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Details

Source
CERT-Bund (BSI) Security Advisories (DE · national-cert · site)
Severity
high
Published
2026-07-17
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-2026-2393

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-2026-11386coverage & exploitation statusNVD · CVE.org
CVE-2026-12391coverage & exploitation statusNVD · CVE.org
CVE-2026-9494coverage & exploitation statusNVD · CVE.org

Same CVEs, other sources

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

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