CVE-2005-3531

fusermount in FUSE before 2.4.1, if installed setuid root, allows local users to corrupt /etc/mtab and possibly modify mount options by performing a mount over a directory whose name contains certain special characters.

Published: 2005-11-23 Last update: 2026-04-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2005-3531 is rated Low Risk (18.5/100): CVSS Low severity, with low exploitation likelihood (EPSS 0.36%). 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-2005-3531

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 2026-06-15 0.08% 0.36% +0.29%
2 2025-03-17 0.04% 0.08% +0.04%
3 2023-03-07 — 0.04% —

Full EPSS history (4 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2005-3531

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
2.1 2.0 LOW
AV:L/AC:L/Au:N/C:N/I:P/A:N Click to expand
Access vector (AV:L)
Requires local access to the target system.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
 3.9 2.9 [email protected]

Weakness enumeration for CVE-2005-3531

OS Trackers for CVE-2005-3531

vendor priority summary link
debian low CVE-2005-3531 low priority: Debian including 1 source packages (fuse), 4 status rows across 4 suites (bookworm, bullseye, sid, trixie): resolved 4. https://security-tracker.debian.org/tracker/CVE-2005-3531
gentoo normal CVE-2005-3531: 1 GLSA(s) (200511-17), 1 atom(s) (sys-fs/fuse); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2005-3531
ubuntu medium CVE-2005-3531 medium priority: Ubuntu including 1 source packages (fuse), 4 status rows across 4 suites (dapper, edgy, feisty, upstream): released 3, needs-triage 1. https://ubuntu.com/security/CVE-2005-3531

Affected software / configurations for CVE-2005-3531

Vendor Product Version Raw CPE
miklos_szeredi fuse 2.2 cpe:2.3:a:miklos_szeredi:fuse:2.2:*:*:*:*:*:*:*
miklos_szeredi fuse 2.2.1 cpe:2.3:a:miklos_szeredi:fuse:2.2.1:*:*:*:*:*:*:*
miklos_szeredi fuse 2.3.0 cpe:2.3:a:miklos_szeredi:fuse:2.3.0:*:*:*:*:*:*:*
miklos_szeredi fuse 2.3_rc1 cpe:2.3:a:miklos_szeredi:fuse:2.3_rc1:*:*:*:*:*:*:*
miklos_szeredi fuse 2.4.0 cpe:2.3:a:miklos_szeredi:fuse:2.4.0:*:*:*:*:*:*:*

References for CVE-2005-3531

cvelogic Threat Intelligence