CVE-2023-42483

System crash via undisclosed TOCTOU race

Published Dec 13, 2023 · Updated Aug 28, 2024

TOCTOU race condition in Samsung Exynos 9820, 980, 1080, 2100, 2200, 1280, and 1380 allows local users to crash the system. Samsung identifies only a time-of-check/time-of-use race and has not disclosed the affected component, competing operations, or attacker-controlled input. The NVD assesses a local, low-privileged, high-complexity path with no user interaction, and the reported consequence is a system crash.

CVSS severity4.7
Medium
EPSS probability0.15%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

TOCTOU race condition in Samsung Exynos 9820, 980, 1080, 2100, 2200, 1280, and 1380 allows local users to crash the system. Samsung identifies only a time-of-check/time-of-use race and has not disclosed the affected component, competing operations, or attacker-controlled input. The NVD assesses a local, low-privileged, high-complexity path with no user interaction, and the reported consequence is a system crash.

The record

CVE
CVE-2023-42483
Published
Dec 13, 2023
Updated
Aug 28, 2024
Vendor
Samsung Electronics
Product
Exynos
Classifications
CWE-367, T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 13, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 28, 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=1080
  2. Affected versionversion=1280
  3. Affected versionversion=1380
  4. Affected versionversion=2100
  5. Affected versionversion=2200
  6. Affected versionversion=980
  7. Affected versionversion=9820

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Samsung Electronics · Exynosversion=1080; version=1280; version=1380; version=2100; version=2200; version=980; version=9820

Published CVSS scores

6.3MITRECVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H
4.7NIST NVDCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

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

Weakness, pattern, technique

CWE-367Time-of-check Time-of-use (TOCTOU) Race Condition
T1499.004Endpoint Denial of Service: Application 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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