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CVE-2026-18299— GStreamer rtpsbcdepay Use-After-Free Remote Code Execution Vulnerability

Quick assessment

Affected
GStreamer GStreamer
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

GStreamer是GStreamer组织开源的一个多媒体处理开发框架。 GStreamer 99fde1184fe8b12d0721230941c1bf2080913183版本存在资源管理错误漏洞，该漏洞源于处理RTP负载元素时未验证对象存在性，可能导致释放后重用，攻击者可利用此漏洞在当前进程上下文中执行任意代码。

AI Predicted 8.8 Difficulty: Hard EPSS 0.21% · P10

Affected Version Matrix 1

VendorProduct Version RangeStatus
GStreamer GStreamer 99fde1184fe8b12d0721230941c1bf2080913183 affected
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I. Basic Information for CVE-2026-18299

Vulnerability Information
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Vulnerability Title
GStreamer rtpsbcdepay Use-After-Free Remote Code Execution Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
GStreamer rtpsbcdepay Use-After-Free Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of GStreamer. Interaction with this library is required to exploit this vulnerability but attack vectors may vary depending on the implementation. The specific flaw exists within the processing of RTP payload elements. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-29787.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
释放后使用
Source: CVE Program / CVE List V5
Vulnerability Title
GStreamer 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
GStreamer是GStreamer组织开源的一个多媒体处理开发框架。 GStreamer 99fde1184fe8b12d0721230941c1bf2080913183版本存在资源管理错误漏洞，该漏洞源于处理RTP负载元素时未验证对象存在性，可能导致释放后重用，攻击者可利用此漏洞在当前进程上下文中执行任意代码。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
GStreamer GStreamer 99fde1184fe8b12d0721230941c1bf2080913183 -

II. Public POCs for CVE-2026-18299

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III. Intelligence Information for CVE-2026-18299

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Vendor Advisories for CVE-2026-18299 (2)

Same Patch Batch · GStreamer · 2026-08-20 · 5 CVEs total

CVE-2026-18296 GStreamer MRF File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability
CVE-2026-18295 GStreamer MRF File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability
CVE-2026-18298 GStreamer PNG File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability
CVE-2026-18297 GStreamer OGG File Parsing Stack-based Buffer Overflow Remote Code Execution Vulnerability

IV. Related Vulnerabilities

Same product: GStreamer
Same vendor: GStreamer
Same weakness: CWE-416

V. Comments for CVE-2026-18299

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