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Heap overflow in GStreamer rtpL16depay allows remote code execution

Priority MEDIUM 50CWE-122Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.0 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-122 and the CVSS impact.

Summary

GStreamer is affected at commit 5903987091bb25e4f549331032cd2e3494cf8dae. The rtpL16depay RTP payload element does not validate the length of user-supplied data before copying it to a heap-based buffer (CWE-122). A remote attacker can execute arbitrary code in the context of the current process, but interaction with the library is required.

Written with Claude Haiku 5.5 from the sources below · 2026-11-06

Description from the CNA

GStreamer rtpL16depay Heap-based Buffer Overflow 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 proper validation of the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-31143.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00704 53rd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
GStreamerGStreamer5903987091bb25e4f549331032cd2e3494cf8dae—No fix listedCNA
  • GStreamer VendorGStreamer Affected 5903987091bb25e4f549331032cd2e3494cf8dae Fixed in — No fix listed CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:gstreamer:gstreamer:*:*:*:*:*:*:*:*——GStreamer
  • cpe:2.3:a:gstreamer:gstreamer:*:*:*:*:*:*:*:* Versions — — ·GStreamer

Remediation

The sources list no fixed version for GStreamer. Red Hat lists Red Hat Enterprise Linux 6 and Red Hat Enterprise Linux 7 as affected, with no plan available.

Written with Claude Haiku 5.5 from the sources below · 2026-11-06

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 6AffectedNo fix yet
Red Hat Enterprise Linux 7AffectedNo fix yet

Timeline

  1. 2026-10-21 Threatist record created from CVE-2026-111183
  2. 2026-10-21 Alias added: GHSA-62fg-53h6-6f68
  3. 2026-10-23 CISA SSVC decision points changed
  4. 2026-10-23 CISA SSVC decision points changed
  5. 2026-10-25 EPSS moved to the 50th–90th percentile
  6. 2026-11-03 Affected versions changed · Red Hat
  7. 2026-11-03 CVSS score added · Red Hat

References

  • TI-2025-29786 In GStreamer through 1.26.1, the isomp4 plugin's qtdemux_parse_trak function may read… CVSS 3.1HIGH 8.1
  • TI-2024-31895 GHSL-2024-117: GStreamer has an out-of-bounds write in Ogg demuxer CVSS 4.0HIGH 8.6
  • TI-2024-31893 GHSL-2024-118: GStreamer has a null pointer dereference in gst_gdk_pixbuf_dec_flush CVSS 4.0HIGH 8.6
  • TI-2024-31887 GHSL-2024-116: Stack-buffer overflow in gst_opus_dec_parse_header CVSS 4.0HIGH 8.6
  • TI-2024-31829 GHSL-2024-197: GStreamer uses uninitialized stack memory in Matroska/WebM demuxer CVSS 4.0HIGH 8.6
  • TI-2024-31828 GHSL-2024-195: GStreamer has an OOB-write in convert_to_s334_1a CVSS 4.0HIGH 8.6
See all 122 →

Sources