CVE-2026-34979

| EUVD-2026-18885 MEDIUM
2026-04-03 GitHub_M
5.3
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low

Lifecycle Timeline

3
Analysis Generated
Apr 03, 2026 - 21:30 vuln.today
EUVD ID Assigned
Apr 03, 2026 - 21:30 euvd
EUVD-2026-18885
CVE Published
Apr 03, 2026 - 21:16 nvd
MEDIUM 5.3

Tags

Heap Overflow Buffer Overflow

Description

OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In versions 2.4.16 and prior, there is a heap-based buffer overflow in the CUPS scheduler when building filter option strings from job attribute. At time of publication, there are no publicly available patches.

Analysis

Heap-based buffer overflow in OpenPrinting CUPS scheduler versions 2.4.16 and prior allows unauthenticated remote attackers to trigger a denial of service condition by crafting malicious job attributes that overflow buffers during filter option string construction. With a CVSS score of 5.3 and network accessibility, this vulnerability impacts availability on exposed CUPS instances; no public exploit code or vendor patch has been released as of publication.

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Priority Score

27
Low Medium High Critical
KEV: 0
EPSS: +0.0
CVSS: +26
POC: 0

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CVE-2026-34979 vulnerability details – vuln.today
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