CVE-2013-5503 describes a denial-of-service vulnerability in Cisco IOS XR 4.3.1. The flaw occurs when the UDP process fails to release packet memory after detecting full queues, allowing remote attackers to exhaust memory resources by sending UDP packets to listening ports. This vulnerability carries a high CVSS score of 7.8, indicating a critical impact with no authentication required and low attack complexity, leading to complete system unavailability. Despite its severity, there is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
4.3.1CPE matchmatch criteria | cpe:2.3:o:cisco:ios_xr:4.3.1:*:*:*:*:*:*:* |
CVSS version used by this source: 2.0
AV:N/AC:L/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, 0.1 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.