CVE-2026-41079
CVE-2026-41079 is a medium-severity vulnerability in Openprinting Cups with a CVSS 3.x base score of 4.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-125.
Key facts
- Severity: Medium (CVSS 3.x base score 4.3)
- EPSS exploit prediction: 0% (33rd percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-25574
- Weakness: CWE-125
- Affected product: Openprinting Cups
- Published:
- Last modified:
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.
Frequently asked questions
- What is CVE-2026-41079?
- 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.
- How severe is CVE-2026-41079?
- CVE-2026-41079 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
- Is CVE-2026-41079 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (33rd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-41079?
- CVE-2026-41079 affects Openprinting Cups. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-41079?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2026-41079 have an EU (EUVD) identifier?
- Yes. CVE-2026-41079 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-25574.
- When was CVE-2026-41079 published?
- CVE-2026-41079 was published on 2026-04-24 and last updated on 2026-06-17.
References
- https://github.com/OpenPrinting/cups/commit/b7c2525a885f528d243c3a92197ca99609b3f080
- https://github.com/OpenPrinting/cups/commit/d7fe0f521ff3b24676511e747b058362b9a20737
- https://github.com/OpenPrinting/cups/security/advisories/GHSA-6wpw-g8g6-wvrv
Affected products (1)
- cpe:2.3:a:openprinting:cups:*:*:*:*:*:*:*:*
More vulnerabilities in Openprinting Cups
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- CVE-2026-34990 — High (CVSS 7.8): OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In versions 2.4.16…
- CVE-2026-34980 — High (CVSS 7.5): OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In versions 2.4.16…
- CVE-2023-32324 — High (CVSS 7.5): OpenPrinting CUPS is an open source printing system. In versions 2.4.2 and prior, a heap buffer overflow vulnerability…
- CVE-2023-4504 — High (CVSS 7.0): Due to failure in validating the length provided by an attacker-crafted PPD PostScript document, CUPS and libppd are…
- CVE-2022-26691 — Medium (CVSS 6.7): A logic issue was addressed with improved state management. This issue is fixed in Security Update 2022-003 Catalina,…
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