CVE intelligence and bounded remediation

CVE-2024-20316 — Cisco Ios Xe security vulnerability

Medium CVSS 5.8

A vulnerability in the data model interface (DMI) services of Cisco IOS XE Software could allow an unauthenticated, remote attacker to access resources that should have been protected by a configured IPv4 access control list (ACL). This vulnerability is due to improper handling of error conditions when a successfully authorized device administrator updates an IPv4 ACL using the NETCONF or RESTCONF protocol, and the update would reorder access control entries (ACEs) in the updated ACL. An attacker could exploit this vulnerability by accessing resources that should have been protected across an affected device.

Severity
Medium
CVSS
5.8 (3.1)
Published
2024-03-27
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-390

Affected products

  • cisco / ios_xe / 16.3.1
  • cisco / ios_xe / 16.3.1a
  • cisco / ios_xe / 16.3.2
  • cisco / ios_xe / 16.3.3
  • cisco / ios_xe / 16.3.4
  • cisco / ios_xe / 16.3.5

Showing 6 representative product identities from 160 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.

Matched remediation archetype

General vulnerability remediation

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

Check exposure

  • Confirm the affected component, deployment paths, reachable interfaces, and enabled features from inventories and configuration, without probing production destructively.
  • Compare the advisory's affected conditions with the repository lockfiles, build manifests, artifacts, and runtime inventory.
  • Identify data sensitivity, trust boundaries, and privilege level for every confirmed affected deployment.

Remediate safely

  • Apply a vendor-supported fix or remove the affected component or feature; record the selected change and its source in the repository.
  • Update direct and transitive dependency locks, generated artifacts, deployment manifests, and asset inventories together.
  • Add a regression test for the documented unsafe condition using inert inputs and preserve rollback instructions.

Authoritative sources

Complete CVE record and remediation plan

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