CVE-2026-3081
Stack-based Buffer Overflow in GStreamer H.266 Codec Enables RCE
Publication date: 2026-03-16
Last updated on: 2026-03-17
Assigner: Zero Day Initiative
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| gstreamer | gstreamer | to 1.28.1 (exc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-121 | A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
CVE-2026-3081 is a stack-based buffer overflow vulnerability in the GStreamer H.266 codec parser. It occurs because the software does not properly validate the length of user-supplied data before copying it into a fixed-length buffer on the stack during the parsing of decoding units.
This flaw allows remote attackers to execute arbitrary code on affected systems by exploiting the improper data validation, potentially taking control of the process running the GStreamer library.
How can this vulnerability impact me? :
This vulnerability can allow an attacker to execute arbitrary code remotely on your system with the privileges of the process running the GStreamer library.
Successful exploitation could lead to full compromise of the affected application, potentially allowing data theft, system manipulation, or further attacks within your environment.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
I don't know
How can this vulnerability be detected on my network or system? Can you suggest some commands?
I don't know
What immediate steps should I take to mitigate this vulnerability?
To mitigate this vulnerability, you should update GStreamer to the latest version where this issue has been fixed.
Since the vulnerability arises from the GStreamer H.266 codec parser, avoiding or disabling the use of this codec parser until the update is applied can reduce risk.