[UPDATE] [mittel] CUPS: Mehrere Schwachstellen

mediumCVE-2026-27447 CVE-2026-34978 CVE-2026-34979 CVE-2026-34980

Ein Angreifer kann mehrere Schwachstellen in CUPS ausnutzen, um Sicherheitsvorkehrungen zu umgehen, beliebigen Code auszuführen, erweiterte Rechte zu erlangen, Daten zu manipulieren oder einen Denial-of-Service-Zustand herbeizuführen.

CSIRTS triage

vendor: CUPS product: CUPS Remote code execution Privilege escalation Denial of serviceOther

What: Multiple vulnerabilities in CUPS can bypass security measures, execute arbitrary code, gain elevated privileges, manipulate data, or cause denial-of-service conditions.
Who is affected: Deployments of CUPS are affected.
Urgency: Remediation is medium urgency due to the potential for exploitation and medium severity.
Action: Apply patches as soon as they are available.

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: medium
Published: 2026-09-04
Exploitation: Not in CISA KEV at last sync

Original advisory: https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-0947

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-2026-274470.32% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 24% of all EPSS-scored CVEs.
Low exploitation riskCVE-2026-349780.41% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 34% of all EPSS-scored CVEs.
Low exploitation riskCVE-2026-349790.38% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 31% of all EPSS-scored CVEs.
Low exploitation riskCVE-2026-349800.50% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 41% of all EPSS-scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-27447	coverage & exploitation status	NVD · CVE.org
CVE-2026-34978	coverage & exploitation status	NVD · CVE.org
CVE-2026-34979	coverage & exploitation status	NVD · CVE.org
CVE-2026-34980	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

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

unknownNCSC-2026-0371 [1.00] [M/H] Kwetsbaarheden verholpen in Apple macOS en Samba door Apple en Sambancsc-nl
high[NEU] [hoch] Apple iOS, iPadOS, macOS Tahoe, macOS Golden Gate, macOS Sequoia und Safari: Mehrere Schwachstell…cert-bund
unknownApple Products Multiple Vulnerabilitieshkcert
unknownUSN-8578-1: CUPS control character injection vulnerabilityubuntu