CVE-2023-36482

NFC service restart via unchecked buffer copy

Published Aug 8, 2023 · Updated Oct 17, 2024

Buffer overflow in Samsung NFC S3NRN4V, S3NSN4V, S3NSEN4, SEN82AB, and S3NRN82 allows physically proximate attackers to restart the NFC service. The NFC input-processing path copies an input buffer without checking whether it fits the destination buffer. An attacker must be within NFC range; exploitation interrupts availability by restarting the service, with no reported data disclosure or modification.

CVSS severity4.3
Medium
EPSS probability0.30%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Buffer overflow in Samsung NFC S3NRN4V, S3NSN4V, S3NSEN4, SEN82AB, and S3NRN82 allows physically proximate attackers to restart the NFC service. The NFC input-processing path copies an input buffer without checking whether it fits the destination buffer. An attacker must be within NFC range; exploitation interrupts availability by restarting the service, with no reported data disclosure or modification.

The record

CVE
CVE-2023-36482
Published
Aug 8, 2023
Updated
Oct 17, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-120, T1499.004
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 8, 2023CVE publishedPublication date reported by the CVE source.
  2. Oct 17, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

4.3NIST NVDCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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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)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

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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