CVE-2021-0216 describes a Denial of Service (DoS) vulnerability in Juniper Networks Junos OS, specifically impacting ACX5448 and ACX710 platforms. A high rate of transit ARP packets can cause BFD sessions to flap, disrupting routing protocols and network stability. This vulnerability has a CVSS v3.1 score of 6.5 (Medium), indicating it can be exploited by an unauthenticated attacker on an adjacent network with low attack complexity to achieve high availability impact. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 18.2, < 18.2R3-S8CPE match | cpe:2.3:o:juniper:junos:*:*:*:*:*:*:*:* | ||
>= 18.3, < 18.3R3-S5CPE match | cpe:2.3:o:juniper:junos:*:*:*:*:*:*:*:* | ||
>= 19.1, < 19.1R3-S5CPE match | cpe:2.3:o:juniper:junos:*:*:*:*:*:*:*:* | ||
>= 19.3, < 19.3R3CPE match | cpe:2.3:o:juniper:junos:*:*:*:*:*:*:*:* | ||
>= 19.4, < 19.4R3CPE match | cpe:2.3:o:juniper:junos:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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, 0.0 Mastodon, and 0.1 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.