CVE-2022-50976 – This vulnerability allows a local attacker with... (How to Fix)

Q: What is the severity of CVE-2022-50976?

CVE-2022-50976 has a CVSS score of 7.7 (HIGH). This vulnerability allows a local attacker with physical USB access to cause a full device reset by using an invalid reset file. It affects devices that accept password resets via USB. Attackers could disrupt operations by forcing devices to factory defaults.

📋 TL;DR

This vulnerability allows a local attacker with physical USB access to cause a full device reset by using an invalid reset file. It affects devices that accept password resets via USB. Attackers could disrupt operations by forcing devices to factory defaults.

💻 Affected Systems

Products:

Innomic devices with USB password reset capability

Versions: Specific versions not detailed in references; likely multiple affected versions.

Operating Systems: Embedded/device-specific OS

Default Config Vulnerable: ⚠️ Yes

Notes: Vulnerability exists when USB password reset feature is enabled; exact product models not specified in provided references.

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete device reset to factory defaults, causing data loss, service disruption, and requiring full reconfiguration.

🟠

Likely Case

Unauthorized device reset leading to temporary service interruption and administrative overhead for recovery.

🟢

If Mitigated

Minimal impact if USB reset functionality is disabled or physical access controls prevent exploitation.

🌐 Internet-Facing: LOW - Requires physical USB access, not remotely exploitable.

🏢 Internal Only: MEDIUM - Insider threats or unauthorized personnel with physical access could exploit.

🎯 Exploit Status

Public PoC: ✅ No

Weaponized: UNKNOWN

Unauthenticated Exploit: ⚠️ Yes

Complexity: LOW

Exploitation requires physical USB access and creating/supplying an invalid reset file; no authentication needed once access is obtained.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Check vendor advisory for specific patched versions

Vendor Advisory: https://www.innomic.com/.well-known/csaf/white/2026/ids-2026-0001.html

Restart Required: Yes

Instructions:

1. Review vendor advisory for affected products. 2. Apply firmware/software updates from Innomic. 3. Restart devices after patching. 4. Verify fix using vendor guidance.

🔧 Temporary Workarounds

Disable USB password reset

all

Turn off the USB-based password reset functionality if not required.

Check device configuration interface for USB reset settings and disable.

Physical access controls

all

Restrict physical access to USB ports using locks, enclosures, or monitoring.

🧯 If You Can't Patch

Implement strict physical security controls to prevent unauthorized USB access.
Monitor for unexpected device resets and maintain backups for quick recovery.

🔍 How to Verify

Check if Vulnerable:

Check device configuration for enabled USB password reset feature; consult vendor advisory for specific version checks.

Check Version:

Use device management interface or CLI to check firmware version (vendor-specific command).

Verify Fix Applied:

After patching, attempt to trigger reset with invalid USB file (in controlled test) to confirm failure; verify firmware version matches patched release.

📡 Detection & Monitoring

Log Indicators:

Log entries indicating password reset attempts via USB
Unexpected device reboot or factory reset events

Network Indicators:

N/A - local physical attack

SIEM Query:

Search for 'reset', 'USB', 'password reset' in device logs within short timeframes.

📊 Metadata

CVE ID: CVE-2022-50976

CVSS v3 Score: 7.7 (HIGH)

CVSS Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

CWE: CWE-1288

Published: February 2, 2026

Last Updated: February 4, 2026

🤖 AI-assisted analysis, reviewed for accuracy