CVE intelligence and bounded remediation

CVE-2023-5459 — A vulnerability has been found in Delta Electronics DVP32ES2 PLC 1.48 and classified as critical

High CVSS 7.5

A vulnerability has been found in Delta Electronics DVP32ES2 PLC 1.48 and classified as critical. This vulnerability affects unknown code of the component Password Transmission Handler. The manipulation leads to denial of service. The exploit has been disclosed to the public and may be used. VDB-241582 is the identifier assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

Severity
High
CVSS
7.5 (3.1)
Published
2023-10-09
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-404

Affected products

  • deltaww / dvp32es200r_firmware / 1.48
  • deltaww / dvp32es200t_firmware / 1.48
  • deltaww / dvp32es211t_firmware / 1.48
  • deltaww / dvp32es200rc_firmware / 1.48
  • deltaww / dvp32es200tc_firmware / 1.48
  • deltaww / dvp32es200re_firmware / 1.48

Showing 6 representative product identities from 7 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

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