CVE intelligence and bounded remediation

CVE-2023-51127 — FLIR AX8 thermal sensor cameras up to and including 1.46.16 are vulnerable to Directory Traversal due to improper access restriction

High CVSS 7.5

FLIR AX8 thermal sensor cameras up to and including 1.46.16 are vulnerable to Directory Traversal due to improper access restriction. This vulnerability allows an unauthenticated, remote attacker to obtain arbitrary sensitive file contents by uploading a specially crafted symbolic link file. NOTE: The vendor has stated that with the introduction of firmware version 1.49.16 (Jan 2023) the FLIR AX8 should no longer be affected by the vulnerability reported. Latest firmware version (as of Oct 2025, was released Jun 2024) is 1.55.16.

Severity
High
CVSS
7.5 (3.1)
Published
2024-01-10
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-22

Affected products

  • flir / flir_ax8_firmware / 1.46.16

Matched remediation archetype

Path traversal, unsafe upload, and file handling

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

Check exposure

  • Trace untrusted filenames, archive entries, URLs, and path segments into read, write, include, extraction, and upload operations.
  • Identify filesystem roots, mount permissions, symbolic-link behavior, archive handling, and whether uploaded content is web-accessible or executable.
  • Review canonicalization and containment checks across supported operating systems and storage backends.

Remediate safely

  • Generate server-side storage identifiers and resolve paths beneath a fixed root using filesystem-aware containment checks.
  • Reject absolute, parent-relative, alternate-separator, device, link, and archive entries that escape the intended root.
  • Store uploads outside executable or served paths, validate type and size, and use private atomic temporary files.

Authoritative sources

Complete CVE record and remediation plan

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