CVE-2011-3603

The router advertisement daemon (radvd) before 1.8.2 does not properly handle errors in the privsep_init function, which causes the radvd daemon to run as root and has an unspecified impact.

Published: 2014-04-27 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2011-3603 is rated Low Risk (27.4/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.36%). 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-2011-3603

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 0.13% 0.36% +0.22%
2 2023-03-07 0.95% 0.13% -0.82%
3 2022-02-04 — 0.95% —

Full EPSS history (3 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2011-3603

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.4 2.0 MEDIUM
AV:L/AC:M/Au:N/C:P/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:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 3.4 6.4 [email protected]

Weakness enumeration for CVE-2011-3603

OS Trackers for CVE-2011-3603

vendor priority summary link
gentoo high CVE-2011-3603: 1 GLSA(s) (201111-08), 1 atom(s) (net-misc/radvd); latest impact high. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2011-3603
redhat medium — https://access.redhat.com/security/cve/CVE-2011-3603
ubuntu medium CVE-2011-3603 medium priority: Ubuntu including 1 source packages (radvd), 6 status rows across 6 suites (hardy, lucid, maverick, natty, oneiric, upstream): released 5, ignored 1. https://ubuntu.com/security/CVE-2011-3603

NVD evaluator notes for CVE-2011-3603

Comment: Per http://thread.gmane.org/gmane.comp.security.oss.general/5973/focus=6015, this vulnerablity is being assigned a CVSS base metric of AV:L/AC:M/Au:N/C:P/I:P/A:P = 4.4

Affected software / configurations for CVE-2011-3603

Vendor Product Version Raw CPE
litech router_advertisement_daemon <= 1.8.1 cpe:2.3:a:litech:router_advertisement_daemon:*:*:*:*:*:*:*:*

References for CVE-2011-3603

cvelogic Threat Intelligence