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CVE Record

CVE-2026-3083: GStreamer rtpqdm2depay Out-Of-Bounds Write Remote Code Execution Vulnerability

GStreamer rtpqdm2depay Out-Of-Bounds Write 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 X-QDM RTP payload elements. When parsing the packetid element, the process does not properly validate user-supplied data, which can result in a write past the end of an allocated array. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-28850.

HighCVSS 8.8Not KEV-listedUpdated
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Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

CVE-2026-3083 is a high-severity GStreamer flaw that could let an attacker run code through crafted media/RTP input. The risk matters where business applications, browsers, media services, or pipelines process untrusted media using GStreamer. Public sources provided do not show CISA KEV listing or confirmed active exploitation.

Executive priority

Prioritize patching internet-facing or user-facing media-processing systems. The business risk is code execution in the affected process, but urgency should be based on actual GStreamer exposure because the provided evidence does not confirm active exploitation.

Technical view

The flaw is an out-of-bounds write in GStreamer rtpqdm2depay while processing X-QDM RTP payload elements. Packetid parsing lacks sufficient user-data validation, allowing writes past an allocated array. ZDI describes possible remote code execution in the current process context. CWE mappings include CWE-129 and CWE-787.

Likely exposure

Exposure is most likely in systems that use GStreamer to process RTP media, especially X-QDM payloads or untrusted media streams. Exact affected release ranges are incomplete in the bundle; one source names a specific GStreamer commit and Red Hat advisories provide downstream package context.

Exploitation context

The CVSS vector is network-accessible with low complexity and no privileges, but user or application interaction with the library is required. Attack vectors may vary by how GStreamer is embedded. No provided source confirms exploitation in the wild.

Researcher notes

Useful follow-up is version-range clarification across upstream and distributions. The source bundle identifies the vulnerable parser behavior and fix reference, but affected release mapping is sparse. Avoid assuming all GStreamer deployments are reachable unless the rtpqdm2depay path processes attacker-controlled media.

Mitigation direction

  • Apply vendor GStreamer updates from your operating system or application supplier.
  • For Red Hat environments, review the listed RHSA advisories for package status.
  • If building from source, confirm inclusion of upstream commit d60a94dee3c0a0942c9981491bf83e0de1900fbf.
  • Reduce untrusted RTP or X-QDM media processing until patched.
  • Track vendor guidance where affected version mapping remains unclear.

Validation and detection

  • Inventory systems and applications that load GStreamer media-processing components.
  • Check whether RTP depayloading or X-QDM payload handling is enabled or reachable.
  • Compare installed GStreamer packages against vendor errata and advisories.
  • Confirm patched builds include the upstream fix commit or downstream backport.
  • Review service boundaries where untrusted media reaches GStreamer.
Prepared
Confidence
medium
Sources
12

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · low confidence lookup

CWE-129: Exact CWE lookup

Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

Open ATT&CK lookup
cwe · low confidence lookup

CWE-787: Exact CWE lookup

Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

Open ATT&CK lookup
description · low confidence lookup

Execution behavior lookup

The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2026-3083 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
High
CVSS
8.8 (3.0)
Known Exploited
No
Published

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

2CVSS vectors
5Timeline events
2ADP providers
22Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: noneAutomatable: noTechnical Impact: total

CVSS vector scores

2 official scores

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
8.8CVSS 3.0HighCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H2.85.9zdi
8.8CVSS 3.1HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H2.85.9redhat-SADP

Vulnerability scoring details

Base CVSS 3.1 score

8.8High
CVSS 3.1 vector shape for CVE-2026-3083Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. ADP timelineredhat-SADP

    Made public.

  3. CVE publishedCVE Program

    The CVE record was published.

  4. ADP timelineredhat-SADP

    Reported to Red Hat.

  5. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CISA-ADPCISA ADP Vulnrichment
other:ssvc
redhat-SADPgstreamer-plugins-good: GStreamer: Remote Code Execution via Out-Of-Bounds Write in rtpqdm2depay
other:Red Hat severity ratingcvssV3_1
  • 2026-03-13T21:02:11.232Z: Reported to Red Hat.
  • 2026-03-13T20:41:31.185Z: Made public.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
GStreamerGStreamer1c6e163aa33962f5ee4a87d29319ccdd5cb67612unknown
Weakness

CWE details

CWE-129CWE-787

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-129 · source CWE mapping

Improper Validation of Array Index

Improper Validation of Array Index represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.

Open CWE intelligenceSame-CWE CVEs
CWE-787 · source CWE mapping

Out-of-bounds Write

Out-of-bounds Write represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.

Open CWE intelligenceSame-CWE CVEs