How severe is CVE-2022-31479?

CVE-2022-31479 has a CVSS 3.x base score of 9.6, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2022-31479 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-31479?

CVE-2022-31479 primarily affects Carrier Lenels2 Lnl-4420 Firmware. In total, 14 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2022-31479?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2022-31479 published?

CVE-2022-31479 was published on 2022-06-06 and last updated on 2026-06-17.

CVE-2022-31479

CVE-2022-31479 is a critical-severity vulnerability in Carrier Lenels2 Lnl-4420 Firmware with a CVSS 3.x base score of 9.6. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-78.

Key facts

Severity: Critical (CVSS 3.x base score 9.6)
CVSS v2: 10.0
EPSS exploit prediction: 2% (81st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-78
Affected product: Carrier Lenels2 Lnl-4420 Firmware
Published: 2022-06-06
Last modified: 2026-06-17

Description

An unauthenticated attacker can update the hostname with a specially crafted name that will allow for shell commands to be executed during the core collection process. 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. An attacker with this level of access on the device can monitor all communications sent to and from this device, modify onboard relays, change configuration files, or cause the device to become unstable. The injected commands only get executed during start up or when unsafe calls regarding the hostname are used. This allows the attacker to gain remote access to the device and can make their persistence permanent by modifying the filesystem.

Frequently asked questions

What is CVE-2022-31479?: An unauthenticated attacker can update the hostname with a specially crafted name that will allow for shell commands to be executed during the core collection process. 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. An attacker with this level of access on the device can monitor all communications sent to and from this device, modify onboard relays, change configuration files, or cause the device to become unstable. The injected commands only get executed during start up or when unsafe calls regarding the hostname are used. This allows the attacker to gain remote access to the device and can make their persistence permanent by modifying the filesystem.
How severe is CVE-2022-31479?: CVE-2022-31479 has a CVSS 3.x base score of 9.6, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2022-31479 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-31479?: CVE-2022-31479 primarily affects Carrier Lenels2 Lnl-4420 Firmware. In total, 14 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2022-31479?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2022-31479 published?: CVE-2022-31479 was published on 2022-06-06 and last updated on 2026-06-17.

References

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

Affected products (14)

cpe:2.3:o:hidglobal:lp1501_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hidglobal:lp1502_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hidglobal:lp2500_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hidglobal:lp4502_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hidglobal:ep4502_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:carrier:lenels2_lnl-4420_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:carrier:lenels2_lnl-x2210_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:carrier:lenels2_lnl-x2220_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:carrier:lenels2_lnl-x3300_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:carrier:lenels2_lnl-x4420_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:carrier:lenels2_s2-lp-1501_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:carrier:lenels2_s2-lp-1502_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:carrier:lenels2_s2-lp-2500_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:carrier:lenels2_s2-lp-4502_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Carrier Lenels2 Lnl-4420 Firmware

CVE-2022-31481 — Critical (CVSS 10.0): An unauthenticated attacker can send a specially crafted update file to the device that can overflow a buffer. This…
CVE-2022-31483 — Critical (CVSS 9.1): An authenticated attacker can upload a file with a filename including “..” and “/” to achieve the ability to…
CVE-2022-31486 — High (CVSS 8.8): An authenticated attacker can send a specially crafted route to the “edit_route.cgi” binary and have it execute…
CVE-2022-31484 — High (CVSS 7.5): An unauthenticated attacker can send a specially crafted network packet to delete a user from the web interface. This…
CVE-2022-31482 — High (CVSS 7.5): An unauthenticated attacker can send a specially crafted unauthenticated HTTP request to the device that can overflow a…
CVE-2022-31480 — High (CVSS 7.5): An unauthenticated attacker could arbitrarily upload firmware files to the target device, ultimately causing a…

All CVEs affecting Carrier Lenels2 Lnl-4420 Firmware →

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