What’s Vulnerable › Vulnerabilities

CVE-2022-31480: Unauthenticated Firmware Upload and Arbitrary Reboot

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.0% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-06-06 · updated 2026-06-17
• Weakness: CWE-425

Description

An unauthenticated attacker could arbitrarily upload firmware files to the target device, ultimately causing a Denial-of-Service (DoS). This vulnerability impacts products based on HID Mercury Intelligent Controllers LP1501, LP1502, LP2500, LP4502, and EP4502 which contain firmware versions prior to 1.302 for the LP series and 1.296 for the EP series. The attacker needs to have a properly signed and encrypted binary, loading the firmware to the device ultimately triggers a reboot.

Affected products

• Carrier Lenels2 Lnl-4420 Firmware: before 1.296 — fixed in 1.296
• Carrier Lenels2 Lnl-X2210 Firmware: before 1.302 — fixed in 1.302
• Carrier Lenels2 Lnl-X2220 Firmware: before 1.302 — fixed in 1.302
• Carrier Lenels2 Lnl-X3300 Firmware: before 1.302 — fixed in 1.302
• Carrier Lenels2 Lnl-X4420 Firmware: before 1.302 — fixed in 1.302
• Carrier Lenels2 S2-Lp-1501 Firmware: before 1.302 — fixed in 1.302
• Carrier Lenels2 S2-Lp-1502 Firmware: before 1.302 — fixed in 1.302
• Carrier Lenels2 S2-Lp-2500 Firmware: before 1.302 — fixed in 1.302
• Carrier Lenels2 S2-Lp-4502 Firmware: before 1.302 — fixed in 1.302
• Hidglobal Ep4502 Firmware: before 1.296 — fixed in 1.296
• Hidglobal Lp1501 Firmware: before 1.302 — fixed in 1.302
• Hidglobal Lp1502 Firmware: before 1.302 — fixed in 1.302
• Hidglobal Lp2500 Firmware: before 1.302 — fixed in 1.302
• Hidglobal Lp4502 Firmware: before 1.302 — fixed in 1.302

How to fix

Upgrade to a fixed version: Carrier Lenels2 Lnl-4420 Firmware 1.296; Carrier Lenels2 Lnl-X2210 Firmware 1.302; Carrier Lenels2 Lnl-X2220 Firmware 1.302; Carrier Lenels2 Lnl-X3300 Firmware 1.302; Carrier Lenels2 Lnl-X4420 Firmware 1.302; Carrier Lenels2 S2-Lp-1501 Firmware 1.302; Carrier Lenels2 S2-Lp-1502 Firmware 1.302; Carrier Lenels2 S2-Lp-2500 Firmware 1.302; Carrier Lenels2 S2-Lp-4502 Firmware 1.302; Hidglobal Ep4502 Firmware 1.296; Hidglobal Lp1501 Firmware 1.302; Hidglobal Lp1502 Firmware 1.302. Check the vendor advisory for mitigations.

References

• https://www.corporate.carrier.com/product-security/advisories-resources/
• https://www.corporate.carrier.com/product-security/advisories-resources/

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