CVE-2012-4620 describes a denial-of-service vulnerability affecting Cisco IOS versions 12.2 and 15.0 through 15.2 on Cisco 10000 series routers when a tunnel interface is present. Remote attackers can exploit this by sending specially crafted tunneled GRE/IP, IPIP, or IPv6 in IPv4 packets, leading to an interface queue wedge. This vulnerability has a CVSS score of 7.8, indicating high severity with a network-based attack vector, low attack complexity, and a complete impact on availability. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
All Versions ImpactedCPE matchmatch criteria | cpe:2.3:h:cisco:10008_router:*:*:*:*:*:*:*:* | ||
12.2CPE matchmatch criteria | cpe:2.3:o:cisco:ios:12.2:*:*:*:*:*:*:* | ||
15.0CPE matchmatch criteria | cpe:2.3:o:cisco:ios:15.0:*:*:*:*:*:*:* | ||
15.0\(1\)seCPE matchmatch criteria | cpe:2.3:o:cisco:ios:15.0\(1\)se:*:*:*:*:*:*:* | ||
15.1CPE matchmatch criteria | cpe:2.3:o:cisco:ios:15.1:*:*:*:*:*:*:* |
CVSS version used by this source: 2.0
AV:N/AC:L/Au:N/C:N/I:N/A:C
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.