CVE-2023-40353

Service interruption via overflowing buffer index

Published Sep 8, 2023 · Updated Sep 26, 2024

Integer overflow in Samsung Exynos Mobile Processor 980 and 2100 allows local users to interrupt requested services via a crafted application. A buffer index calculation overflows while processing application-controlled input, producing an invalid index that blocks service execution. Exploitation requires local execution of the crafted application and user interaction; the published impact is limited to service availability.

CVSS severity3.3
Low
EPSS probability0.19%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Integer overflow in Samsung Exynos Mobile Processor 980 and 2100 allows local users to interrupt requested services via a crafted application. A buffer index calculation overflows while processing application-controlled input, producing an invalid index that blocks service execution. Exploitation requires local execution of the crafted application and user interaction; the published impact is limited to service availability.

The record

CVE
CVE-2023-40353
Published
Sep 8, 2023
Updated
Sep 26, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-190, T1499.004
Attack vector
local
Privileges
Unavailable

Timeline

How it unfolded

  1. Sep 8, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 26, 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 vectorlocal
Required privilegesUnavailable in this record.

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

3.3NIST NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
2.0MITRECVSS:3.1/AV:L/AC:L/PR:H/UI:R/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.

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
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-190Integer Overflow or Wraparound
T1499.004Endpoint Denial of Service: Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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