CVE-2020-1638 describes a denial-of-service vulnerability in Juniper Networks Junos OS and Junos OS Evolved, specifically impacting MX Series, PTX10001, QFX5220, and PTX10003 devices running certain 19.x versions. An unauthenticated attacker can trigger an FPC restart by sending a specially crafted IPv4 packet directly to the device, causing all traffic through that FPC to drop. This vulnerability has a CVSS score of 7.5 (HIGH) due to its network-based attack vector, low attack complexity, and high impact on availability. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
19.2CPE matchmatch criteria | cpe:2.3:o:juniper:junos:19.2:-:*:*:*:*:*:* | ||
19.2CPE matchmatch criteria | cpe:2.3:o:juniper:junos:19.2:r1:*:*:*:*:*:* | ||
19.2CPE matchmatch criteria | cpe:2.3:o:juniper:junos:19.2:r1-s1:*:*:*:*:*:* | ||
19.2CPE matchmatch criteria | cpe:2.3:o:juniper:junos:19.2:r1-s2:*:*:*:*:*:* | ||
19.2CPE matchmatch criteria | cpe:2.3:o:juniper:junos:19.2: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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