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CVE-2011-3605

19
FAUCET Score

CVE-2011-3605 describes a denial-of-service vulnerability in the router advertisement daemon (radvd) versions prior to 1.8.2, specifically when the UnicastOnly option is enabled. An unauthenticated remote attacker can exploit this by sending a large volume of ND_ROUTER_SOLICIT requests, causing the radvd service to temporarily hang. This vulnerability has a CVSS score of 5.0 (medium severity) due to its network attack vector and low complexity, leading to a partial availability impact. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.8.1CPE matchmatch criteria
cpe:2.3:a:litech:router_advertisement_daemon:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

AV:N/AC:L/Au:N/C:N/I:N/A:P

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.59%
Probability of exploitation in next 30 days
EPSS Percentile
73.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0159 is in the 57th percentile among its peer group of 23,684 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (3)

redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 4Fixed in: radvd
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: radvd
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: radvd

Vendor Advisories (1)

redhatCVE-2011-3605Low

radvd: temporary denial of service flaw in process_rs()

Oct 4, 2011

References

debian.org / security/2011/dsa-2323
litech.org / radvd/CHANGES
openwall.com / lists/oss-security/2011/10/06/3
ubuntu.com / usn/USN-1257-1