CVE-2024-49776Public exploitNetwork attack vector

Process crash via negative memcpy length

Published Nov 14, 2024 · Updated Nov 15, 2024

Incorrect buffer-size calculation in justdan96 tsMuxer nightly-2024-04-05-01-53-02 allows attackers to crash the process via a crafted TS file. TSDemuxer::getTrackList subtracts an unchecked TS packet header size from TS_FRAME_SIZE and passes the negative result to memcpy, which aborts processing. Exploitation requires the application to process attacker-supplied media; the documented consequence is a process crash without data disclosure or modification.

CVSS severity6.5
Medium
EPSS probability0.43%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect buffer-size calculation in justdan96 tsMuxer nightly-2024-04-05-01-53-02 allows attackers to crash the process via a crafted TS file. TSDemuxer::getTrackList subtracts an unchecked TS packet header size from TS_FRAME_SIZE and passes the negative result to memcpy, which aborts processing. Exploitation requires the application to process attacker-supplied media; the documented consequence is a process crash without data disclosure or modification.

The record

CVE
CVE-2024-49776
Published
Nov 14, 2024
Updated
Nov 15, 2024
Vendor
justdan96
Product
tsMuxer
Classifications
CWE-131, T1204.002, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 14, 2024CVE publishedPublication date reported by the CVE source.
  2. Nov 15, 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=nightly-2024-04-05-01-53-02

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

justdan96 · tsMuxerversion=nightly-2024-04-05-01-53-02

Published CVSS scores

6.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:R/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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-131Incorrect Calculation of Buffer Size
T1204.002Malicious File
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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