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VulnerabilityPublished

CVE-2026-41079: OpenPrinting cups · Out-of-bounds Read

Affects OpenPrinting cupsSource CVE Database V5

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Not known to be exploited · CVSS 4.3 Medium : upgrade to 2.4.17 when convenient.

Data as of 30 Oct 2026, 11:52 UTC

CVSS 3.1 base score
4.3Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.4% chance of exploitation in 30 days – higher than 35% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 2.4.17
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 24 Apr 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.

What to do

Upgrade cups and openprinting/cups to 2.4.17.

Affected software

ProductAffectedFixed in
OpenPrintingcupsAffected
  • <2.4.17
Fixed in
  • 2.4.17
GitHubopenprinting/cupspkg:github/openprinting/cupsOther threatsAffected
  • <2.4.17
Fixed in
  • 2.4.17

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Upgrade OpenPrinting CUPS to version 2.4.17 or later, where this vulnerability is fixed. Since the vendor advisory confirms the fix in 2.4.17, applying this official update fully mitigates the issue. No other mitigations are indicated or required.

Description

CVE-2026-41079 is a medium severity vulnerability in OpenPrinting CUPS versions prior to 2.4.17. It involves an out-of-bounds read triggered by a crafted SNMP response sent to the CUPS SNMP backend. This flaw allows reading up to 176 bytes beyond a stack buffer, leaking memory that is converted to UTF-8 and exposed as printer supply descriptions. These leaked strings can be viewed by authenticated users through IPP Get-Printer-Attributes responses and the CUPS web interface. The vulnerability does not impact integrity or availability and requires network adjacency but no privileges or user interaction. A fix is available in version 2.4.17.

References

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