CVE intelligence and bounded remediation

CVE-2023-43775 — Eaton Smp Sg-4260 Firmware security vulnerability

Medium CVSS 5.3

Denial-of-service vulnerability in the web server of the Eaton SMP Gateway allows attacker to potentially force an unexpected restart of the automation platform, impacting the availability of the product. In rare situations, the issue could cause the SMP device to restart in Safe Mode or Max Safe Mode. When in Max Safe Mode, the product is not vulnerable anymore.

Severity
Medium
CVSS
5.3 (3.1)
Published
2023-09-27
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-400

Affected products

  • eaton / smp_sg-4260_firmware
  • eaton / smp_sg-4250_firmware
  • eaton / smp_sg-4250_firmware / 7.0
  • eaton / smp_sg-4250_firmware / 7.1
  • eaton / smp_sg-4250_firmware / 7.2
  • eaton / smp_4/dp_firmware

Showing 6 representative product identities from 21 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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