[UPDATE] [high] Samba: Multiple vulnerabilities

CSIRTS triage

What

Multiple vulnerabilities in Samba allow an attacker to execute arbitrary code, conduct denial of service attacks, manipulate files, and bypass security measures.

Who is affected

Deployments of Samba are affected by these vulnerabilities.

Urgency

Remediation is urgent due to the critical severity of the vulnerabilities, although they are not currently exploited.

Action

Update to the latest version of Samba to mitigate these vulnerabilities.

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

Details

Source

CERT-Bund (BSI) Security Advisories (DE · national-cert · site)

Severity

critical

Published

2026-09-03

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-2026-1686

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.

• Low exploitation riskCVE-2026-19330.86% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 56% of all EPSS-scored CVEs.
• Low exploitation riskCVE-2026-23400.94% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 58% of all EPSS-scored CVEs.
• Low exploitation riskCVE-2026-30120.26% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 17% of all EPSS-scored CVEs.
• Moderate exploitation riskCVE-2026-32382.7% 30-day exploitation probability. Patch within normal cadence, watch for KEV listing. Riskier than 85% of all EPSS-scored CVEs.
• Moderate exploitation riskCVE-2026-44082.5% 30-day exploitation probability. Patch within normal cadence, watch for KEV listing. Riskier than 83% of all EPSS-scored CVEs.
• Elevated exploitation riskCVE-2026-448013.9% 30-day exploitation probability — well above the norm. Schedule remediation this cycle. Riskier than 96% of all EPSS-scored CVEs.

Referenced CVEs

Recent advisories for Samba

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.

• medium[NEW] [UNPATCHED] [medium] Samba: Vulnerability allows Denial of Servicecert-bund · 2026-09-01
• high[UPDATE] [high] Samba: Multiple vulnerabilitiescert-bund · 2026-09-01
• high[UPDATE] [high] Samba: Multiple vulnerabilitiescert-bund · 2026-09-01
• medium[UPDATE] [medium] Samba: Vulnerability allows denial of servicecert-bund · 2026-09-01
• medium[UPDATE] [medium] Samba: Multiple vulnerabilities allow denial of servicecert-bund · 2026-09-01
• medium[UPDATE] [medium] Samba: Multiple vulnerabilitiescert-bund · 2026-09-01

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