CVE-2026-41079
OpenPrinting CUPS: Heap out-of-bounds read in SNMP supply-level polling leaks stack memory to authenticated users
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.
INFO
Published Date :
April 24, 2026, 5:16 p.m.
Last Modified :
April 27, 2026, 1:40 p.m.
Remotely Exploit :
No
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- Update CUPS to version 2.4.17 or later.
- Apply vendor patches for CUPS.
- Monitor network for suspicious SNMP responses.
Public PoC/Exploit Available at Github
CVE-2026-41079 has a 1 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-41079.
| URL | Resource |
|---|---|
| https://github.com/OpenPrinting/cups/commit/b7c2525a885f528d243c3a92197ca99609b3f080 | Patch |
| https://github.com/OpenPrinting/cups/commit/d7fe0f521ff3b24676511e747b058362b9a20737 | Patch |
| https://github.com/OpenPrinting/cups/security/advisories/GHSA-6wpw-g8g6-wvrv | Exploit Mitigation Patch Vendor Advisory |
| https://github.com/OpenPrinting/cups/security/advisories/GHSA-6wpw-g8g6-wvrv | Exploit Mitigation Patch Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-41079 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-41079
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Community reconstruction of the legacy JSON NVD Data Feeds. This project uses and redistributes data from the NVD API but is neither endorsed nor certified by the NVD.
Shell
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-41079 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-41079 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Apr. 27, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L Added CPE Configuration OR *cpe:2.3:a:openprinting:cups:*:*:*:*:*:*:*:* versions up to (excluding) 2.4.17 Added Reference Type GitHub, Inc.: https://github.com/OpenPrinting/cups/commit/b7c2525a885f528d243c3a92197ca99609b3f080 Types: Patch Added Reference Type GitHub, Inc.: https://github.com/OpenPrinting/cups/commit/d7fe0f521ff3b24676511e747b058362b9a20737 Types: Patch Added Reference Type CISA-ADP: https://github.com/OpenPrinting/cups/security/advisories/GHSA-6wpw-g8g6-wvrv Types: Exploit, Mitigation, Patch, Vendor Advisory Added Reference Type GitHub, Inc.: https://github.com/OpenPrinting/cups/security/advisories/GHSA-6wpw-g8g6-wvrv Types: Exploit, Mitigation, Patch, Vendor Advisory -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Apr. 25, 2026
Action Type Old Value New Value Added Reference https://github.com/OpenPrinting/cups/security/advisories/GHSA-6wpw-g8g6-wvrv -
New CVE Received by [email protected]
Apr. 24, 2026
Action Type Old Value New Value Added 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. Added CVSS V3.1 AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N Added CWE CWE-200 Added CWE CWE-125 Added Reference https://github.com/OpenPrinting/cups/commit/b7c2525a885f528d243c3a92197ca99609b3f080 Added Reference https://github.com/OpenPrinting/cups/commit/d7fe0f521ff3b24676511e747b058362b9a20737 Added Reference https://github.com/OpenPrinting/cups/security/advisories/GHSA-6wpw-g8g6-wvrv