CVE-2011-3279 describes a denial-of-service vulnerability affecting Cisco IOS (versions 12.1-12.4, 15.0-15.1) and IOS XE (3.1.xSG) devices, specifically within their provider-edge MPLS NAT implementation. An unauthenticated remote attacker can trigger a device reload by sending a malformed SIP packet to UDP port 5060. This vulnerability carries a high CVSS score of 7.8, indicating a critical impact (device reload) with low attack complexity and no authentication required. 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:*:*:*:*:*:*:* | ||
>= 12.1, <= 12.4CPE matchmatch criteria | cpe:2.3:o:cisco:ios:*:*:*:*:*:*:*:* | ||
>= 15.0, <= 15.1CPE matchmatch criteria | cpe:2.3:o:cisco:ios:*:*:*:*:*:*:*:* |
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.