CVE-2021-0206 describes a NULL Pointer Dereference vulnerability in Juniper Networks Junos OS, specifically impacting NFX and SRX Series platforms when SSL Proxy is configured. An unauthenticated attacker can trigger a Denial of Service (DoS) by sending a specially crafted packet, causing the Packet Forwarding Engine (PFE) to crash and restart. Repeated attacks can lead to a sustained DoS. The vulnerability carries a CVSS v3.1 score of 7.5 (High), indicating a network-based attack with low complexity, requiring no user interaction, and resulting in high availability impact. There is no impact on confidentiality or integrity. Currently, there is no known active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE. It is not listed in CISA's KEV catalog.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
18.3CPE matchmatch criteria | cpe:2.3:o:juniper:junos:18.3:-:*:*:*:*:*:* | ||
18.3CPE matchmatch criteria | cpe:2.3:o:juniper:junos:18.3:r1:*:*:*:*:*:* | ||
18.3CPE matchmatch criteria | cpe:2.3:o:juniper:junos:18.3:r1-s1:*:*:*:*:*:* | ||
18.3CPE matchmatch criteria | cpe:2.3:o:juniper:junos:18.3:r1-s2:*:*:*:*:*:* | ||
18.3CPE matchmatch criteria | cpe:2.3:o:juniper:junos:18.3:r1-s3:*:*:*:*:*:* |
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
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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.