CVE-2021-31376 is an Improper Input Validation vulnerability in Juniper Networks Junos OS, specifically affecting ACX Series devices (ACX500, ACX1000, ACX1100, ACX2100, ACX2200, ACX4000, ACX5048, ACX5096) running certain 18.4 versions. An unauthenticated attacker can trigger a Denial of Service (DoS) by sending specially crafted DHCPv6 packets, crashing the Packet Forwarding Engine manager (FXPC) process. This vulnerability has a CVSS score of 7.5 (High), indicating a significant impact on availability with low attack complexity and no user interaction required. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
18.4CPE matchmatch criteria | cpe:2.3:o:juniper:junos:18.4:r3-s7:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/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, 0.1 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.