CVE-2015-4205 is a denial-of-service vulnerability affecting Cisco IOS XR 5.3.1 on ASR 9000 series devices. Remote attackers on the local network can exploit this by sending crafted IEEE 802.3x flow-control PAUSE frames, leading to an NPU chip reset or line-card reload. The vulnerability has a CVSS score of 5.7, indicating a medium severity. It requires adjacent network access and medium attack complexity, with no authentication needed, resulting in a complete loss of availability. There is no evidence of active exploitation, and no public exploit code is available in Metasploit, Nuclei, or ExploitDB. Community discussion and media coverage for this CVE are minimal.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
5.3.1CPE matchmatch criteria | cpe:2.3:o:cisco:ios_xr:5.3.1:*:*:*:*:*:*:* |
CVSS version used by this source: 2.0
AV:A/AC:M/Au:N/C:N/I:N/A:C
No social media mentions found for this CVE.
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.0 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.