CVE-2026-125712

Gst-plugins-base: gst-plugins-base: missing bounds checks in rtcp sdes packet parsing

Published Nov 10, 2026 CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Description
A flaw was found in GStreamer's gst-plugins-base RTCP SDES packet parser. A remote sender able to reach an active media session can supply a malformed SDES entry whose declared length exceeds the received packet. Missing bounds validation can cause the receiver to read beyond the packet buffer, potentially crashing the application or exposing a limited amount of process memory.

Remediation

Vendor Workaround

There is no complete mitigation while RTCP processing remains exposed. If RTP/RTCP is not needed, disable the affected RTP session handling elements. Otherwise, restrict the negotiated RTCP port to trusted peers with network controls. These measures reduce exposure but do not correct the parser flaw.

Tracking

Sign in to view the affected projects.

Advisories

No advisories available
History
Type Values Removed Values Added
CPEs cpe:/a:redhat:enterprise_linux:10 cpe:/o:redhat:enterprise_linux:10.3
References
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
CPEs cpe:/a:redhat:enterprise_linux:9 cpe:/a:redhat:enterprise_linux:9::appstream
References
Type Values Removed Values Added
CPEs cpe:/a:redhat:enterprise_linux:8 cpe:/a:redhat:enterprise_linux:8::appstream
References
Type Values Removed Values Added
Metrics cvssV3_1

{'score': 8.2, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H'}

cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

Type Values Removed Values Added
Description A flaw was found in GStreamer's gst-plugins-base RTCP SDES packet parser. A remote sender able to reach an active media session can supply a malformed SDES entry whose declared length exceeds the received packet. Missing bounds validation can cause the receiver to read beyond the packet buffer, potentially crashing the application or exposing a limited amount of process memory.
Title Gst-plugins-base: gst-plugins-base: missing bounds checks in rtcp sdes packet parsing
First Time appeared Redhat
Redhat enterprise Linux
Redhat rhel Els
Weaknesses CWE-125
CPEs cpe:/a:redhat:enterprise_linux:10
cpe:/a:redhat:enterprise_linux:8
cpe:/a:redhat:enterprise_linux:9
cpe:/o:redhat:rhel_els:6
cpe:/o:redhat:rhel_els:7
Vendors & Products Redhat
Redhat enterprise Linux
Redhat rhel Els
References
Metrics cvssV3_1

{'score': 8.2, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
redhat
Published
Updated
Nov 12, 2026, 5:33 AM
Reserved
Nov 10, 2026, 10:37 AM
Status
Awaiting Analysis
Published
Nov 10, 2026, 12:17 PM
Modified
Nov 12, 2026, 6:17 AM