CVE-2011-3277 describes an unspecified vulnerability within the NAT implementation of Cisco IOS versions 12.1 through 12.4, 15.0 through 15.1, and IOS XE 3.1.xSG. This flaw allows unauthenticated remote attackers to trigger a denial of service, specifically a device reload, by sending specially crafted H.323 packets to TCP port 1720. With a CVSS score of 7.8 (High), the vulnerability is easily exploitable over the network with low attack complexity, leading to a complete loss of availability. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
3.1.0sgCPE matchmatch criteria | cpe:2.3:o:cisco:ios_xe:3.1.0sg:*:*:*:*:*:*:* | ||
3.1.1sgCPE matchmatch criteria | cpe:2.3:o:cisco:ios_xe:3.1.1sg:*:*:*:*:*:*:* | ||
12.1CPE matchmatch criteria | cpe:2.3:o:cisco:ios:12.1:*:*:*:*:*:*:* | ||
12.1eCPE matchmatch criteria | cpe:2.3:o:cisco:ios:12.1e:*:*:*:*:*:*:* | ||
12.2CPE matchmatch criteria | cpe:2.3:o:cisco:ios:12.2:*:*:*:*:*:*:* |
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.