Out-of-bounds read in cups - CVE-2026-41079
Published: April 17, 2026
Vulnerability identifier: #VU126468
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-41079
CWE-ID: CWE-125
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vendor: OpenPrinting
Affected software:
cups
cups
Detailed vulnerability description
The vulnerability allows a remote attacker to disclose sensitive information.
The vulnerability exists due to out-of-bounds read in the CUPS SNMP backend when processing crafted SNMP responses during supply-level polling. A remote attacker can send a specially crafted SNMP response to disclose sensitive information.
The leaked memory is converted from UTF-16 to UTF-8 and becomes visible to authenticated users via IPP Get-Printer-Attributes responses and the CUPS web interface. Exploitation requires an SNMP-discovered printer on the same LAN segment.
How to mitigate CVE-2026-41079
Install security update from vendor's website.