CVE-2015-6271 describes a denial-of-service vulnerability affecting Cisco ASR 1000 series devices running IOS XE versions 2.1.0 through 2.4.3 and 2.5.0, specifically when NAT Application Layer Gateway is enabled. An unauthenticated remote attacker can trigger an Embedded Services Processor crash by sending a specially crafted SIP packet. This vulnerability carries a high CVSS score of 7.8, indicating a critical impact on availability with low attack complexity. While there is no evidence of active exploitation, public exploit code, or Metasploit/Nuclei modules, the vulnerability has received some community discussion, though no media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
2.1.0CPE matchmatch criteria | cpe:2.3:o:cisco:ios_xe:2.1.0:*:*:*:*:*:*:* | ||
2.1.1CPE matchmatch criteria | cpe:2.3:o:cisco:ios_xe:2.1.1:*:*:*:*:*:*:* | ||
2.1.2CPE matchmatch criteria | cpe:2.3:o:cisco:ios_xe:2.1.2:*:*:*:*:*:*:* | ||
2.1.3CPE matchmatch criteria | cpe:2.3:o:cisco:ios_xe:2.1.3:*:*:*:*:*:*:* | ||
2.2.1CPE matchmatch criteria | cpe:2.3:o:cisco:ios_xe:2.2.1:*:*:*:*:*:*:* |
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.