CVE-2026-35344 | uutils coreutils dd Silent Data Corruption via Unconditional Truncation Error Suppression

The dd utility in uutils coreutils suppresses errors during file truncation operations by unconditionally calling Result::ok() on truncation attempts. While intended to mimic GNU behavior for special files like /dev/null, the uutils implementation also hides failures on regular files and directories caused by full disks or read-only file systems. This can lead to silent data corruption in backup or migration scripts, as the utility may report a successful operation even when the destination file contains old or garbage data.

Published: 2026-04-22 Last update: 2026-05-04 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2026-35344 is rated Low Risk (13.9/100): CVSS Low severity, with low exploitation likelihood (EPSS 0.01%). Low composite risk—no urgent action required; patch on your normal maintenance cycle and revisit priority if CVSS or EPSS increases.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2026-35344

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-04-23 — 0.01% —

Full EPSS history (1 record total)

Common vulnerability scoring system (CVSS) metrics for CVE-2026-35344

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
3.3 3.1 LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N)
Service keeps running; no real outage angle.
 1.8 1.4 [email protected]

Weakness enumeration for CVE-2026-35344

GitHub Security Advisory for CVE-2026-35344

GHSA-wh8p-h9hw-x2mc · Severity: low · Ecosystem: rust — uutils coreutils has an Unchecked Return Value Issue

OS Trackers for CVE-2026-35344

vendor priority summary link
debian not yet assigned CVE-2026-35344 not yet assigned priority: Debian including 1 source packages (rust-coreutils), 3 status rows across 3 suites (bookworm, sid, trixie): open 3. https://security-tracker.debian.org/tracker/CVE-2026-35344
ubuntu medium CVE-2026-35344 medium priority: Ubuntu including 1 source packages (rust-coreutils), 5 status rows across 5 suites (jammy, noble, questing, resolute, upstream): needed 4, DNE 1. https://ubuntu.com/security/CVE-2026-35344

Affected software / configurations for CVE-2026-35344

Vendor Product Version Raw CPE
uutils coreutils — cpe:2.3:a:uutils:coreutils:-:*:*:*:*:rust:*:*

References for CVE-2026-35344

cvelogic Threat Intelligence