CVE-2022-31482 | Denial-of-Service via internal structure overflow

An unauthenticated attacker can send a specially crafted unauthenticated HTTP request to the device that can overflow a buffer. This vulnerability impacts products based on HID Mercury Intelligent Controllers LP1501, LP1502, LP2500, LP4502, and EP4502 which contain firmware versions prior to 1.29. The overflowed data leads to segmentation fault and ultimately a denial-of-service condition, causing the device to reboot. The impact of this vulnerability is that an unauthenticated attacker could leverage this flaw to cause the target device to become unresponsive. An attacker could automate this attack to achieve persistent DoS, effectively rendering the target controller useless.

Published: 2022-06-06 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2022-31482 is rated Moderate Risk (52.7/100): CVSS High severity, with medium exploitation likelihood (EPSS 0.51%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2022-31482

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-12-15 0.81% 0.51% -0.30%
2 2025-11-21 0.51% 0.81% +0.30%
3 2025-11-18 — 0.51% —

Full EPSS history (12 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2022-31482

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 3.6 [email protected]
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 3.6 [email protected]
7.8 2.0 HIGH
AV:N/AC:L/Au:N/C:N/I:N/A:C Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:C)
Complete availability impact.
 10.0 6.9 [email protected]

Weakness enumeration for CVE-2022-31482

Affected software / configurations for CVE-2022-31482

Vendor Product Version Raw CPE
hidglobal lp1501_firmware < 1.29 cpe:2.3:o:hidglobal:lp1501_firmware:*:*:*:*:*:*:*:*
hidglobal lp1502_firmware < 1.29 cpe:2.3:o:hidglobal:lp1502_firmware:*:*:*:*:*:*:*:*
hidglobal lp2500_firmware < 1.29 cpe:2.3:o:hidglobal:lp2500_firmware:*:*:*:*:*:*:*:*
hidglobal lp4502_firmware < 1.29 cpe:2.3:o:hidglobal:lp4502_firmware:*:*:*:*:*:*:*:*
hidglobal ep4502_firmware < 1.29 cpe:2.3:o:hidglobal:ep4502_firmware:*:*:*:*:*:*:*:*
carrier lenels2_lnl-4420_firmware < 1.29 cpe:2.3:o:carrier:lenels2_lnl-4420_firmware:*:*:*:*:*:*:*:*
carrier lenels2_lnl-x2210_firmware < 1.29 cpe:2.3:o:carrier:lenels2_lnl-x2210_firmware:*:*:*:*:*:*:*:*
carrier lenels2_lnl-x2220_firmware < 1.29 cpe:2.3:o:carrier:lenels2_lnl-x2220_firmware:*:*:*:*:*:*:*:*
carrier lenels2_lnl-x3300_firmware < 1.29 cpe:2.3:o:carrier:lenels2_lnl-x3300_firmware:*:*:*:*:*:*:*:*
carrier lenels2_lnl-x4420_firmware < 1.29 cpe:2.3:o:carrier:lenels2_lnl-x4420_firmware:*:*:*:*:*:*:*:*
carrier lenels2_s2-lp-1501_firmware < 1.29 cpe:2.3:o:carrier:lenels2_s2-lp-1501_firmware:*:*:*:*:*:*:*:*
carrier lenels2_s2-lp-1502_firmware < 1.29 cpe:2.3:o:carrier:lenels2_s2-lp-1502_firmware:*:*:*:*:*:*:*:*
carrier lenels2_s2-lp-2500_firmware < 1.29 cpe:2.3:o:carrier:lenels2_s2-lp-2500_firmware:*:*:*:*:*:*:*:*
carrier lenels2_s2-lp-4502_firmware < 1.29 cpe:2.3:o:carrier:lenels2_s2-lp-4502_firmware:*:*:*:*:*:*:*:*

References for CVE-2022-31482

cvelogic Threat Intelligence