CVE-2011-3601

Buffer overflow in the process_ra function in the router advertisement daemon (radvd) before 1.8.2 allows remote attackers to execute arbitrary code or cause a denial of service (crash) via a negative value in a label_len value.

Published: 2014-02-17 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2011-3601 is rated Moderate Risk (63.3/100): CVSS High severity, with medium exploitation likelihood (EPSS 3.96%). Core evidence: EPSS rose +2.09% over the last day, indicating growing attacker interest. Mandatory action: Review affected assets and schedule remediation.

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-2011-3601

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 1.87% 3.96% +2.09%
2 2025-03-30 2.85% 1.87% -0.98%
3 2025-03-29 2.85%

Full EPSS history (7 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2011-3601

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 2.0 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
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.
10.0 6.4 [email protected]

Weakness enumeration for CVE-2011-3601

OS Trackers for CVE-2011-3601

vendor priority summary link
debian not yet assigned CVE-2011-3601 not yet assigned priority: Debian including 1 source packages (radvd), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2011-3601
gentoo high CVE-2011-3601: 1 GLSA(s) (201111-08), 1 atom(s) (net-misc/radvd); latest impact high. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2011-3601
redhat low https://access.redhat.com/security/cve/CVE-2011-3601
ubuntu medium CVE-2011-3601 medium priority: Ubuntu including 1 source packages (radvd), 6 status rows across 6 suites (hardy, lucid, maverick, natty, oneiric, upstream): released 3, not-affected 2, ignored 1. https://ubuntu.com/security/CVE-2011-3601

Affected software / configurations for CVE-2011-3601

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

References for CVE-2011-3601

cvelogic Threat Intelligence