CVE-2011-2395 describes a vulnerability in the Neighbor Discovery (ND) protocol implementation within Cisco IOS on certain switches. Remote attackers can bypass Router Advertisement Guarding by sending a fragmented IPv6 packet where the Router Advertisement (RA) message is in the second fragment, often preceded by a long Destination Options header or an ICMPv6 Echo Request. This vulnerability has a CVSS score of 5.0 (medium severity), indicating it can be exploited remotely with low complexity to impact integrity, but not confidentiality or availability. There is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
4.1CPE matchmatch criteria | cpe:2.3:o:cisco:ios:4.1:*:*:*:*:*:*:* | ||
4.1.1CPE matchmatch criteria | cpe:2.3:o:cisco:ios:4.1.1:*:*:*:*:*:*:* | ||
4.1.2CPE matchmatch criteria | cpe:2.3:o:cisco:ios:4.1.2:*:*:*:*:*:*:* | ||
8.2CPE matchmatch criteria | cpe:2.3:o:cisco:ios:8.2:*:*:*:*:*:*:* | ||
8.3CPE matchmatch criteria | cpe:2.3:o:cisco:ios:8.3:*:*:*:*:*:*:* |
CVSS version used by this source: 2.0
AV:N/AC:L/Au:N/C:N/I:P/A:N
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.
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 records are not available for this CVE.