CVE-2026-35358

MEDIUM EPSS 7.5%
Published Apr 22, 20262mo ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Apr 22, 2026 2mo ago
Last Modified Jun 17, 2026 1w ago

Description

The cp utility in uutils coreutils, when performing recursive copies (-R), incorrectly treats character and block device nodes as stream sources rather than preserving them. Because the implementation reads bytes into regular files at the destination instead of using mknod, device semantics are destroyed (e.g., /dev/null becomes a regular file). This behavior can lead to runtime denial of service through disk exhaustion or process hangs when reading from unbounded device nodes.

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
7.5% percentile
Exploit & Patch Status
Public Exploit Known
Patch Available

Weaknesses 1

CWE-706

Affected Products 1

VendorProductVersionRange
uutilscoreutils* <0.7.0

References 3

  • github.com https://github.com/uutils/coreutils/issues/9746
    ExploitIssue Tracking
  • github.com https://github.com/uutils/coreutils/pull/11163
    Issue TrackingPatch
  • github.com https://github.com/uutils/coreutils/releases/tag/0.7.0
    Release Notes

Remediation

  • github.com https://github.com/uutils/coreutils/pull/11163
    Issue TrackingPatch