CVE intelligence and bounded remediation
CVE-2022-26782 — Inhandnetworks Ir302 Firmware security vulnerability
Multiple improper input validation vulnerabilities exists in the libnvram.so nvram_import functionality of InHand Networks InRouter302 V3.5.4. A specially-crafted file can lead to remote code execution. An attacker can send a sequence of requests to trigger this vulnerability.An improper input validation vulnerability exists in the `httpd`'s `user_define_set_item` function. Controlling the `user_define_timeout` nvram variable can lead to remote code execution.
- Severity
- Critical
- CVSS
- 9.9 (3.0)
- Published
- 2022-05-12
- CISA KEV
- Not currently listed
- Ecosystem
- operating-system
- Weaknesses
- CWE-20, CWE-787
Affected products
- inhandnetworks / ir302_firmware
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
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