CVE-2025-5791 | Users: `root` appended to group listings

A flaw was found in the user's crate for Rust. This vulnerability allows privilege escalation via incorrect group listing when a user or process has fewer than exactly 1024 groups, leading to the erroneous inclusion of the root group in the access list.

Published: 2025-06-06 Last update: 2026-04-15 Assigner: [email protected] Source: [email protected]
NVD Status：Deferred，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2025-5791 is rated Low Risk (28.5/100): CVSS High severity, with low exploitation likelihood (EPSS 0.01%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

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-2025-5791

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 2025-06-07 — 0.01% —

Full EPSS history (1 record total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-5791

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.1 3.1 HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:N)
Service keeps running; no real outage angle.
 1.8 5.2 [email protected]

Weakness enumeration for CVE-2025-5791

GitHub Security Advisory for CVE-2025-5791

GHSA-m65q-v92h-cm7q · Severity: high · Ecosystem: rust — users may append `root` to group listings

OS Trackers for CVE-2025-5791

vendor priority summary link
redhat high — https://access.redhat.com/security/cve/CVE-2025-5791
suse high CVE-2025-5791 severity important: SUSE including 269 source package names (afterburn, afterburn-5.8.2-3.1, …), 294 product×package rows across 26 product lines (Image SLES15-SP3-Micro-5-2-BYOS-Azure, Image SLES15-SP4-Micro-5-3, … (26 product lines)): Known Affected 231, Fixed 59, Known Not Affected 4. https://www.suse.com/security/cve/CVE-2025-5791/
ubuntu medium CVE-2025-5791 medium priority: Ubuntu including 1 source packages (rust-users), 7 status rows across 7 suites (focal, jammy, noble, oracular, plucky, questing, upstream): needs-triage 4, ignored 2, DNE 1. https://ubuntu.com/security/CVE-2025-5791

Affected software / configurations for CVE-2025-5791

Vendor Product Version Raw CPE
No affected products in dataset.

References for CVE-2025-5791

cvelogic Threat Intelligence