CVE detail

CVE-2019-1965 — CVE-2019-1965

Published 2019-08-28 · Modified 2026-06-17 · Vendor cisco · Product nx-os · Source nvd
HIGH
severity
CVSS-derived band
7.7
CVSS v3
0–10 scale
0.0153
EPSS probability
exploitation probability, 30d
72.0%
EPSS percentile
percentile vs all CVEs
NOT LISTED
CISA KEV
known exploited catalog

Description

A vulnerability in the Virtual Shell (VSH) session management for Cisco NX-OS Software could allow an authenticated, remote attacker to cause a VSH process to fail to delete upon termination. This can lead to a build-up of VSH processes that overtime can deplete system memory. When there is no system memory available, this can cause unexpected system behaviors and crashes. The vulnerability is due to the VSH process not being properly deleted when a remote management connection to the device is disconnected. An attacker could exploit this vulnerability by repeatedly performing a remote management connection to the device and terminating the connection in an unexpected manner. A successful exploit could allow the attacker to cause the VSH processes to fail to delete, which can lead to a sys

Remediation

ProductVulnerable rangeFixed versionAdvisory
Cisco Cisco NX-OS Software>=unspecified<8.4(1)8.4(1)advisory ↗

References

cvedb.io · NVD · CISA KEV · FIRST EPSS · vendor advisories (CVE Program List v5). Informational only, no warranty — verify every remediation against the vendor advisory before acting on it. This product uses data from the NVD API but is not endorsed or certified by the NVD, CISA, FIRST.org or any vendor named. CVE® is a registered trademark of The MITRE Corporation.