cups

OpenPrinting's CUPS contained a heap buffer overflow that can be triggered when administrators run the daemon with logging set to DEBUG, allowing a remote attacker to repeatedly crash the printing service and, in some cases, sustain a full denial-of-service condition against printing resources...

The OpenPrinting/CUPS libppd heap-overflow (CVE-2023-4504) is real, it’s patched upstream, and Azure Linux is not the only Microsoft artifact that can — or has been shown to — contain the vulnerable code. Microsoft’s public position (which emphasizes that Azure Linux is the first product they...

OpenPrinting’s CUPS received a security update on November 27–29, 2025 after a stack-based out‑of‑bounds write (CWE‑124 / CWE‑129) was found in the cupsd configuration parser that lets a local lpadmin user inject a malicious IPv6 fragment into cupsd.conf through the web UI — an input‑validation...