Medium severity · published Apr 24, 2026
CVE-2026-41079
OpenPrinting CUPS: Heap out-of-bounds read in SNMP supply-level polling leaks stack memory to authenticated users
5.4
CVSS
0.4%
EPSS
No
On KEV
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
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
Attack vector
Adjacent
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
None
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 35% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CU
cups · OpenPrinting
< 2.4.17 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-41079
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-41079
Patch
https://github.com/OpenPrinting/cups/commit/b7c2525a885f528d243c3a92197ca99609b3f080
Patch
https://github.com/OpenPrinting/cups/commit/d7fe0f521ff3b24676511e747b058362b9a20737
Exploit
https://github.com/OpenPrinting/cups/security/advisories/GHSA-6wpw-g8g6-wvrv
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