CVE-2020-3397 — Improper Input Validation in Cisco Nx-os Software

CWE-20 — Improper Input Validation4 documents4 sources
Severity
8.6HIGHNVD
EPSS
1.0%
top 22.96%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
1
Cisco Nx-os Software
Timeline
PublishedAug 27
Latest updateMay 24

Description

A vulnerability in the Border Gateway Protocol (BGP) Multicast VPN (MVPN) implementation of Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause an affected device to unexpectedly reload, resulting in a denial of service (DoS) condition. The vulnerability is due to incomplete input validation of a specific type of BGP MVPN update message. An attacker could exploit this vulnerability by sending this specific, valid BGP MVPN update message to a targeted device. A successfu…

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:HExploitability: 3.9 | Impact: 4.0

Affected Packages1 packages

🔴Vulnerability Details

2
GHSA
GHSA-5799-w2pr-v9hg: A vulnerability in the Border Gateway Protocol (BGP) Multicast VPN (MVPN) implementation of Cisco NX-OS Software could allow an unauthenticated, remot↗2022-05-24
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CVEList
Cisco NX-OS Software Border Gateway Protocol Multicast VPN Denial of Service Vulnerability↗2020-08-27
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📋Vendor Advisories

1
Cisco
Cisco NX-OS Software Border Gateway Protocol Multicast VPN Denial of Service Vulnerability↗2020-08-26
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CVE-2020-3397 — Improper Input Validation in Cisco | cvebase