CVE intelligence and bounded remediation

CVE-2021-1484 — Cisco Catalyst Sd-Wan Manager security vulnerability

Medium CVSS 6.5

A vulnerability in the web UI of Cisco SD-WAN vManage Software could allow an authenticated, remote attacker to inject arbitrary commands on an affected system and cause a denial of service (DoS) condition. This vulnerability is due to improper input validation of user-supplied input to the device template configuration. An attacker could exploit this vulnerability by submitting crafted input to the device template configuration. A successful exploit could allow the attacker to cause a DoS condition on the affected system.Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

Severity
Medium
CVSS
6.5 (3.1)
Published
2024-11-15
CISA KEV
Not currently listed
Ecosystem
software/application
Weaknesses
CWE-88

Affected products

  • cisco / catalyst_sd-wan_manager / 17.2.4
  • cisco / catalyst_sd-wan_manager / 17.2.5
  • cisco / catalyst_sd-wan_manager / 17.2.6
  • cisco / catalyst_sd-wan_manager / 17.2.7
  • cisco / catalyst_sd-wan_manager / 17.2.8
  • cisco / catalyst_sd-wan_manager / 17.2.9

Showing 6 representative product identities from 58 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.

Matched remediation archetype

Resource exhaustion and denial of service

This catalog composition supplies bounded fallback guidance. Explicitly reviewed curated workflows load with the complete record below.

Check exposure

  • Identify attacker-influenced work factors including input size, nesting, compression, fan-out, regex cost, allocation, recursion, retries, and connection lifetime.
  • Map per-request and shared CPU, memory, disk, descriptor, thread, queue, and downstream-service limits.
  • Determine whether authentication, tenancy, quotas, and rate controls apply before expensive processing begins.

Remediate safely

  • Bound input size, nesting, expansion, work, concurrency, queue depth, retries, and execution time before resource-intensive processing.
  • Release resources on every success, error, cancellation, and timeout path and use backpressure instead of unbounded buffering.
  • Update affected components and add small deterministic tests that assert resource ceilings rather than exhausting a host.

Authoritative sources

Complete CVE record and remediation plan

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