CVE-2022-31481

highpriority · track · 41EPSS 0.016 · 76 %ileEURUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

1.64% (76th) EPSS

CVSS 7.5 · high

Is it mine?

47 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · cisa_csaf_ot

EPSS · scored 2026-10-27

An unauthenticated attacker can send a specially crafted update file 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 1.302 for the LP series and 1.296 for the EP series. The overflowed data can allow the attacker to manipulate the “normal” code execution to that of their choosing. 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.

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

No vendor fix yet; a mitigation is available.

MitigationHID Mercury access panels sold by LenelS2cisa_csaf_ot
Carrier recommends updating these access panels to the most current released firmware via the LenelS2 Partner Center. Please contact a Carrier support channel partner for instructions.
https://www.corporate.carrier.com/contact-us/

cvss

Technical severity, 0–10. One row per scoring source.

10.0

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 7.5–10

v2.07.5highAV:N/AC:L/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 10 · impact 6.4

v3.110criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 6

v3.010criticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:Hsecondary · CISA US

v3.110criticalAV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.110criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:Hsecondary · ENISA EU

v3.110criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:Hsecondary · productsecurity@carrier.comexploitability 3.9 · impact 6

v3.19.1criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-120USprimaryCWE-119USCWE-120USCWE-120US

affected products (47)

Products and version ranges known to be affected.

HID Mercury access panels sold by LenelS2 - LNL-4420all versionscisa_csaf_otUS
HID Mercury access panels sold by LenelS2 - LNL-X2210all versionscisa_csaf_otUS
HID Mercury access panels sold by LenelS2 - LNL-X2220all versionscisa_csaf_otUS
HID Mercury access panels sold by LenelS2 - LNL-X3300all versionscisa_csaf_otUS
HID Mercury access panels sold by LenelS2 - LNL-X4420all versionscisa_csaf_otUS
HID Mercury access panels sold by LenelS2 - S2-LP-1501all versionscisa_csaf_otUS
HID Mercury access panels sold by LenelS2 - S2-LP-1502all versionscisa_csaf_otUS
HID Mercury access panels sold by LenelS2 - S2-LP-2500all versionscisa_csaf_otUS
HID Mercury access panels sold by LenelS2 - S2-LP-4502all versionscisa_csaf_otUS
Carrier LenelS2 HID Mercury access panels sold by LenelS2all versionscisa_csaf_otUS
EP4502ALL → 1.296enisa_euvdEU
LNL-4420ALL → 1.296enisa_euvdEU
LNL-X2210ALL → 1.302enisa_euvdEU
LNL-X2220ALL → 1.302enisa_euvdEU
LNL-X3300ALL → 1.302enisa_euvdEU
LNL-X4420ALL → 1.302enisa_euvdEU
LP1501ALL → 1.302enisa_euvdEU
LP1502ALL → 1.302enisa_euvdEU
LP2500ALL → 1.302enisa_euvdEU
LP4502ALL → 1.302enisa_euvdEU

showing 20 of 47

advisories (1)

Vendor and ecosystem advisories describing this.

ICSA-22-153-01Carrier LenelS2 HID Mercury access panels2022-06-02icsa · cisa_csaf_otUS
Successful exploitation of these vulnerabilities could allow an attacker access to the device, allowing monitoring of all communications sent to and from the device, modification of onboard relays, changing of configuration files, device instability, and a denial-of-service condition.

also known as (5)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cisa_csaf_ot NVD CVE.org MITRE

published 2022-06-06modified 2026-06-17

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references (7)

External citations — patches, advisories, analysis.

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