CVE intelligence and bounded remediation

CVE-2025-9356 — Linksys Re6250 Firmware security vulnerability

High CVSS 9

A vulnerability was determined in Linksys RE6250, RE6300, RE6350, RE6500, RE7000 and RE9000 1.0.013.001/1.0.04.001/1.0.04.002/1.1.05.003/1.2.07.001. Affected by this issue is the function inboundFilterAdd of the file /goform/inboundFilterAdd. Executing manipulation of the argument ruleName can lead to stack-based buffer overflow. The attack may be performed from a remote location. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.

Severity
High
CVSS
9 (2.0)
Published
2025-08-22
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-119, CWE-121

Affected products

  • linksys / re6250_firmware / 1.0.04.001
  • linksys / re6300_firmware / 1.2.07.001
  • linksys / re6350_firmware / 1.0.04.001
  • linksys / re7000_firmware / 1.1.05.003
  • linksys / re9000_firmware / 1.0.04.002
  • linksys / re6500_firmware / 1.0.013.001

Matched remediation archetype

Buffer bounds, memory safety, and memory corruption

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

Check exposure

  • Identify affected native-code versions, build flags, architectures, parsers, codecs, drivers, and input paths in all shipped artifacts.
  • Determine whether untrusted data reaches the affected routine and the process privilege, sandbox, and network exposure.
  • Confirm statically linked, vendored, firmware, and platform-provided copies, not only package-manager records.

Remediate safely

  • Apply the maintained upstream correction or replace the affected component, then rebuild every dependent artifact from clean inputs.
  • Adopt bounds-checked interfaces, validated sizes and integer conversions, clear ownership, and memory-safe components where practical.
  • Enable supported compiler and runtime hardening and add sanitized tests and fuzz regression seeds derived from non-weaponized fixtures.

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.