CVE-2024-47540

Code execution via uninitialized unmap callback

Published Dec 11, 2024 · Updated Nov 3, 2025

Uninitialized stack memory in GStreamer gst-plugins-good before 1.24.10 allows local users to crash applications or execute code. When a WavPack buffer is shorter than four bytes, gst_matroska_demux_add_wvpk_header passes an uninitialized map object to gst_buffer_unmap, which dispatches through an uncontrolled allocator callback. Processing a crafted Matroska/WebM WavPack stream is required, and successful control-flow hijacking executes in the consuming application's context.

CVSS severity8.6
High
EPSS probability1.00%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Uninitialized stack memory in GStreamer gst-plugins-good before 1.24.10 allows local users to crash applications or execute code. When a WavPack buffer is shorter than four bytes, gst_matroska_demux_add_wvpk_header passes an uninitialized map object to gst_buffer_unmap, which dispatches through an uncontrolled allocator callback. Processing a crafted Matroska/WebM WavPack stream is required, and successful control-flow hijacking executes in the consuming application's context.

The record

CVE
CVE-2024-47540
Published
Dec 11, 2024
Updated
Nov 3, 2025
Vendor
GStreamer Project
Product
GStreamer
Classifications
CWE-908, CWE-457, T1203
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 11, 2024CVE publishedPublication date reported by the CVE source.
  2. Nov 3, 2025Record 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=< 1.24.10

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

GStreamer Project · GStreamerversion=< 1.24.10

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
8.6GitHub, Inc.CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-908Use of Uninitialized Resource
CWE-457Use of Uninitialized Variable
T1203Exploitation for Client Execution

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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