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CVE-2026-41079

OpenPrinting CUPS: Heap out-of-bounds read in SNMP supply-level polling leaks stack memory to authenticated users

Published: Apr 24, 2026Updated: Apr 27, 2026 Sources: CVE List NVDCWE-125
NVD MITRE
4.3CVSSMEDIUM
EPSS Score
0.4%
Top 67.6%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:AAC:LPR:NUI:NS:UC:LI:NA:N
Exploitability
AV:AAttack Vector
Adjacent
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:LConfidentiality
Low
I:NIntegrity
None
A:NAvailability
None
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Weaknesses

CWE-125CWE-200

Affected Products

cupsopenprinting
On-prem
OSS Libraries / generic-library
cupsOpenPrinting
On-prem
OSS Libraries / generic-library
openprintingoss-projectOSS Librariesaka cups, cups-filters, libcupsfilters

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available
Workaround Available

MITRE ATT&CK

1 technique
Collection
View detailed technique mapping

References

https://github.com/OpenPrinting/cups/commit/b7c2525a885f528d243c3a92197ca99609b3f080
github.com
https://github.com/OpenPrinting/cups/commit/d7fe0f521ff3b24676511e747b058362b9a20737
github.com
https://github.com/OpenPrinting/cups/security/advisories/GHSA-6wpw-g8g6-wvrv
github.com

Timeline

Published
Apr 24, 2026
Last Updated
Apr 27, 2026

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