CVE intelligence and bounded remediation

CVE-2023-38543 — Ivanti Secure Access Client security vulnerability

High CVSS 8.8

A vulnerability exists on all versions of the Ivanti Secure Access Client below 22.6R1.1, which could allow a locally authenticated attacker to exploit a vulnerable configuration, potentially leading to a denial of service (DoS) condition on the user machine.

Severity
High
CVSS
8.8 (3.0)
Published
2023-11-15
CISA KEV
Not currently listed
Ecosystem
software/application
Weaknesses
CWE-770

Affected products

  • ivanti / secure_access_client
  • ivanti / secure_access_client / 22.6

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

The detailed catalog view below loads this exact record, its source evidence, and the full seven-phase agentic change plan.