CVE-2026-34978
An attacker can exploit multiple vulnerabilities in CUPS to bypass security measures, execute arbitrary code, gain elevated privileges, manipulate data, or cause a denial-of-service condition.
CSIRTS triage
- 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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Exploitation outlook
- Low exploitation risk0.41% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 33% of all EPSS-scored CVEs.
Advisory coverage (1)
- medium[UPDATE] [medium] CUPS: Multiple Vulnerabilitiescert-bund · 2026-07-09
External references
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[](https://www.csirts.com/cve/CVE-2026-34978)