CVE-2022-46527Public exploit

Device reboot loop via oversized NFC lock value

Published Sep 1, 2023 · Updated Oct 1, 2024

Stack-based buffer overflow in ELSYS ERS 1.5 Sound 2.3.8 allows physically proximate attackers to force a persistent reboot loop via NFC. The NFC configuration parser passes the attacker-controlled length of a lock value to strncpy, allowing data longer than the 36-byte stack buffer to overwrite the return address. Writing a crafted NDEF text entry to the sensor's NFC tag requires physical proximity; a 52-character value crashes the device and makes it restart indefinitely.

CVSS severity7.5
High
EPSS probability0.84%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stack-based buffer overflow in ELSYS ERS 1.5 Sound 2.3.8 allows physically proximate attackers to force a persistent reboot loop via NFC. The NFC configuration parser passes the attacker-controlled length of a lock value to strncpy, allowing data longer than the 36-byte stack buffer to overwrite the return address. Writing a crafted NDEF text entry to the sensor's NFC tag requires physical proximity; a 52-character value crashes the device and makes it restart indefinitely.

The record

CVE
CVE-2022-46527
Published
Sep 1, 2023
Updated
Oct 1, 2024
Vendor
ELSYS
Product
ERS
Classifications
CWE-120, T1499
Attack vector
physical
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 1, 2023CVE publishedPublication date reported by the CVE source.
  2. Oct 1, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=2.3.8

What conditions does exploitation require?

Attack vectorphysical
Required privilegesunauthenticated

What is affected?

ELSYS · ERSversion=2.3.8

Published CVSS scores

7.5NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorphysical
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
T1499Endpoint Denial of Service

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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