CVE-2023-4678Public exploit

Process crash via unchecked zero timing values

Published Aug 31, 2023 · Updated Sep 19, 2024

Divide by zero in GPAC before 2.3-DEV allows local users to crash MP4Box by processing a crafted SWF or media file. Its SWF scene code and DASH/ISO media filters use zero frame-rate, timescale, or sample-rate values as divisors without rejecting them. Exploitation requires a local invocation or user-driven file processing and interrupts only the affected MP4Box process.

CVSS severity5.5
Medium
EPSS probability0.31%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Divide by zero in GPAC before 2.3-DEV allows local users to crash MP4Box by processing a crafted SWF or media file. Its SWF scene code and DASH/ISO media filters use zero frame-rate, timescale, or sample-rate values as divisors without rejecting them. Exploitation requires a local invocation or user-driven file processing and interrupts only the affected MP4Box process.

The record

CVE
CVE-2023-4678
Published
Aug 31, 2023
Updated
Sep 19, 2024
Vendor
GPAC Project
Product
GPAC
Classifications
CWE-369, T1204.002
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 31, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 19, 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=unspecified <2.3-DEV

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

GPAC Project · GPACversion=unspecified <2.3-DEV

Published CVSS scores

5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
5.1huntr.devCVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-369Divide By Zero
T1204.002User Execution Malicious File

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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