CVE-2011-4060

The runtime linker in QNX Neutrino RTOS 6.5.0 before Service Pack 1 does not properly clear the LD_DEBUG_OUTPUT and LD_DEBUG environment variables when a program is spawned from a setuid program, which allows local users to overwrite files via a symlink attack.

Published: 2011-10-18 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2011-4060 is rated Low Risk (21/100): CVSS Low severity, with low exploitation likelihood (EPSS 0.30%). 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-2011-4060

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 0.06% 0.30% +0.25%
2 2025-09-08 0.05% 0.06% +0.01%
3 2025-03-30 — 0.05% —

Full EPSS history (6 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2011-4060

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
3.3 2.0 LOW
AV:L/AC:M/Au:N/C:N/I:P/A:P Click to expand
Access vector (AV:L)
Requires local access to the target system.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 3.4 4.9 [email protected]

Weakness enumeration for CVE-2011-4060

Affected software / configurations for CVE-2011-4060

Vendor Product Version Raw CPE
qnx neutrino_rtos 6.5.0 cpe:2.3:o:qnx:neutrino_rtos:6.5.0:*:*:*:*:*:*:*

References for CVE-2011-4060

cvelogic Threat Intelligence