Description
OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. Prior to 2.4.17, a network-adjacent attacker can send a crafted SNMP response to the CUPS SNMP backend that causes an out-of-bounds read of up to 176 bytes past a stack buffer. The leaked memory is converted from UTF-16 to UTF-8 and stored as printer supply description strings, which are subsequently visible to authenticated users via IPP Get-Printer-Attributes responses and the CUPS web interface. This vulnerability is fixed in 2.4.17.
Affected products
openprinting: cups
References4
- github.com/OpenPrinting/cups/security/advisories/GHSA-6wpw-g8g6… ExploitMitigationPatchVendor Advisory
- github.com/OpenPrinting/cups/security/advisories/GHSA-6wpw-g8g6… ExploitMitigationPatchVendor Advisory
- github.com/OpenPrinting/cups/commit/b7c2525a885f528d243c3a92197… Patch
- github.com/OpenPrinting/cups/commit/d7fe0f521ff3b24676511e747b0… Patch
Metrics
- CVSS 3.1
-
5.4
MEDIUM
Score source: NVD
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L - EPSS — exploit probability
- 0% percentile: 36 · as of 13 November 2026
- CWE
- CWE-125CWE-200
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.