CVE-2022-31483
CVE-2022-31483 is a critical-severity vulnerability in Carrier Lenels2 Lnl-4420 Firmware with a CVSS 3.x base score of 9.1. 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-22.
Key facts
- Severity: Critical (CVSS 3.x base score 9.1)
- CVSS v2: 9.0
- EPSS exploit prediction: 2% (73rd percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-22
- Affected product: Carrier Lenels2 Lnl-4420 Firmware
- Published:
- Last modified:
Description
An authenticated attacker can upload a file with a filename including “..” and “/” to achieve the ability to upload the desired file anywhere on the filesystem. This vulnerability impacts products based on HID Mercury Intelligent Controllers LP1501, LP1502, LP2500, LP4502, and EP4502 which contain firmware versions prior to 1.271. This allows a malicious actor to overwrite sensitive system files and install a startup service to gain remote access to the underlaying Linux operating system with root privileges.
Frequently asked questions
- What is CVE-2022-31483?
- An authenticated attacker can upload a file with a filename including “..” and “/” to achieve the ability to upload the desired file anywhere on the filesystem. This vulnerability impacts products based on HID Mercury Intelligent Controllers LP1501, LP1502, LP2500, LP4502, and EP4502 which contain firmware versions prior to 1.271. This allows a malicious actor to overwrite sensitive system files and install a startup service to gain remote access to the underlaying Linux operating system with root privileges.
- How severe is CVE-2022-31483?
- CVE-2022-31483 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2022-31483 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2022-31483?
- CVE-2022-31483 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-2022-31483?
- 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-2022-31483 published?
- CVE-2022-31483 was published on 2022-06-06 and last updated on 2026-06-17.
References
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-2022-31479 — Critical (CVSS 9.6): An unauthenticated attacker can update the hostname with a specially crafted name that will allow for shell commands 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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