CVE intelligence and bounded remediation

CVE-2019-1646 — Cisco Vedge 100 Firmware security vulnerability

High CVSS 7.8

A vulnerability in the local CLI of the Cisco SD-WAN Solution could allow an authenticated, local attacker to escalate privileges and modify device configuration files. The vulnerability exists because user input is not properly sanitized for certain commands at the CLI. An attacker could exploit this vulnerability by sending crafted commands to the CLI of an affected device. A successful exploit could allow the attacker to establish an interactive session with elevated privileges. The attacker could then use the elevated privileges to further compromise the device or obtain additional configuration data from the device.

Severity
High
CVSS
7.8 (3.1)
Published
2019-01-24
CISA KEV
Not currently listed
Ecosystem
software/application
Weaknesses
CWE-264, CWE-77

Affected products

  • cisco / vedge_100_firmware
  • cisco / vedge_1000_firmware
  • cisco / vedge_2000_firmware
  • cisco / vedge_5000_firmware
  • cisco / sd-wan
  • cisco / vbond_orchestrator

Showing 6 representative product identities from 8 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.

Matched remediation archetype

Command, code, expression, and template injection

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Check exposure

  • Trace untrusted values to process execution, interpreters, evaluators, template engines, dynamic imports, and administrative scripting features.
  • Determine whether the affected path is reachable across each trust boundary and which service account or host privilege it inherits.
  • Review configuration for optional execution features, unsafe compatibility modes, and shell invocation.

Remediate safely

  • Replace string-built commands or evaluated code with fixed operations and structured argument APIs that do not invoke a shell.
  • Use strict allowlists for operation identifiers and reject unexpected input before it reaches any interpreter.
  • Update the affected component and add inert regression tests covering metacharacters, encoding variants, and alternate request paths.

Authoritative sources

Complete CVE record and remediation plan

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