[UPDATE] [low] CUPS: Multiple Vulnerabilities Allow Denial of Service
An attacker can exploit multiple vulnerabilities in CUPS to conduct a denial of service attack.
CSIRTS triage
- What
- Multiple vulnerabilities in CUPS allow for denial of service attacks.
- Who is affected
- Deployments of CUPS are affected.
- Urgency
- Remediation is low urgency as exploitation is not currently active and severity is low.
- Action
- Monitor for updates and apply patches when available.
AI-assisted analysis generated from the source advisory — verify against the original.
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Details
Original advisory: https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-0994
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-2026-393140.15% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 5% of all scored CVEs.
- Low exploitation riskCVE-2026-393160.18% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 7% of all scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-39314 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-39316 | coverage & exploitation status | NVD · CVE.org |
Recent advisories for CUPS
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[UPDATE] [medium] CUPS: Multiple Vulnerabilitiescert-bund · 2026-07-09
- unknownLink following vulnerability in Canon My Image Garden for macOS and CUPS Printer Driver for macOSjvn · 2026-05-29
- unknown[Update] Vulnerabilities affecting OpenPrinting CUPS (September 27, 2024)cert-fr-alerte · 2024-09-27
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- medium[UPDATE] [medium] Linux Kernel: Multiple vulnerabilities allow denial of service2026-07-10