CVE intelligence and bounded remediation

CVE-2023-4463 — A vulnerability classified as problematic was found in Poly CCX 400, CCX 600, Trio 8800 and Trio C60

High CVSS 7.5

A vulnerability classified as problematic was found in Poly CCX 400, CCX 600, Trio 8800 and Trio C60. This vulnerability affects unknown code of the component HTTP Header Handler. The manipulation of the argument Cookie leads to denial of service. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-249256.

Severity
High
CVSS
7.5 (3.1)
Published
2023-12-29
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-404

Affected products

  • poly / ccx_400_firmware
  • poly / ccx_600_firmware
  • poly / trio_8800_firmware
  • poly / trio_c60_firmware

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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