CVE-2023-1451Public exploit

Local process crash via zero chunk divisor

Published Mar 17, 2023 · Updated Aug 2, 2024

Division by zero in MP4Track::GetSampleFileOffset in MP4v2 2.1.2 allows local users to crash a process with a crafted MP4 file. The function uses samplesPerChunk as the divisor of a modulo operation without rejecting a zero value parsed from malformed track metadata. The file must be processed locally by an application using the library, and the resulting floating-point exception interrupts that process.

CVSS severity5.5
Medium
EPSS probability0.37%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Division by zero in MP4Track::GetSampleFileOffset in MP4v2 2.1.2 allows local users to crash a process with a crafted MP4 file. The function uses samplesPerChunk as the divisor of a modulo operation without rejecting a zero value parsed from malformed track metadata. The file must be processed locally by an application using the library, and the resulting floating-point exception interrupts that process.

The record

CVE
CVE-2023-1451
Published
Mar 17, 2023
Updated
Aug 2, 2024
Vendor
MP4v2 Project
Product
MP4v2
Classifications
CWE-404, T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

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

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  1. Affected versionversion=2.1.2

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

MP4v2 Project · MP4v2version=2.1.2

Published CVSS scores

3.3VulDBCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
1.7VulDBAV:L/AC:L/Au:S/C:N/I:N/A:P

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)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-404Improper Resource Shutdown or Release
T1499.004Application or System Exploitation

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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