CVE-2021-0271 is a Double Free vulnerability in Juniper Networks Junos OS, specifically affecting Marvell-chipset based EX Series devices (EX2200-C, EX3200, EX3300, EX4200, EX4500, EX4550, EX6210, EX8208, EX8216). An adjacently-connected attacker can exploit this by sending a crafted ARP packet, leading to a sustained Denial of Service (DoS). With a CVSS score of 6.5 (Medium), this vulnerability has a low attack complexity and requires no user interaction or privileges, but only affects availability. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 12.3, < 12.3R12-S17CPE match | cpe:2.3:o:juniper:junos:*:*:*:*:*:*:*:* | ||
>= 15.1, < 15.1R7-S8CPE match | cpe:2.3:o:juniper:junos:*:*:*:*:*:*:*:* | ||
12.3CPE matchmatch criteria | cpe:2.3:o:juniper:junos:12.3:-:*:*:*:*:*:* | ||
12.3CPE matchmatch criteria | cpe:2.3:o:juniper:junos:12.3:r1:*:*:*:*:*:* | ||
12.3CPE matchmatch criteria | cpe:2.3:o:juniper:junos:12.3:r10:*:*:*:*:*:* |
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
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.