CVE-2021-31374 describes a denial-of-service vulnerability in Juniper Networks Junos OS and Junos OS Evolved. A specially crafted BGP UPDATE or KEEPALIVE message can crash the routing process daemon (RPD), leading to a sustained DoS condition affecting both IBGP and EBGP deployments over IPv4 or IPv6. This vulnerability has a CVSSv3 score of 7.5 (HIGH), indicating a network-based attack with low complexity and high impact on availability. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
17.3CPE matchmatch criteria | cpe:2.3:o:juniper:junos:17.3:-:*:*:*:*:*:* | ||
17.3CPE matchmatch criteria | cpe:2.3:o:juniper:junos:17.3:r1:*:*:*:*:*:* | ||
17.3CPE matchmatch criteria | cpe:2.3:o:juniper:junos:17.3:r1-s1:*:*:*:*:*:* | ||
17.3CPE matchmatch criteria | cpe:2.3:o:juniper:junos:17.3:r1-s4:*:*:*:*:*:* | ||
17.3CPE matchmatch criteria | cpe:2.3:o:juniper:junos:17.3:r2:*:*:*:*:*:* |
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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The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.