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CVE-2026-125707— Gst-plugins-bad: gst-plugins-bad: off-by-one write in mxf demuxer temporal offset table

Quick assessment

Affected
Red Hat Red Hat Enterprise Linux 10
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.

在 GStreamer 的 MXF 解复用器中发现了一个漏洞。当应用程序处理经过精心构造的 MXF 文件时，一个差一（off-by-one）的边界检查错误可能导致在时间偏移数组的逻辑末尾之后写入一个字节。这可能会破坏内存并导致应用程序崩溃。目前尚未通过运行时测试证实该漏洞的实际影响范围。

CVSS 6.1 · Medium

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-125707

Vulnerability Information
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Vulnerability Title
Gst-plugins-bad: gst-plugins-bad: off-by-one write in mxf demuxer temporal offset table
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw was found in GStreamer's MXF demuxer. When an application processes a crafted MXF file, an off-by-one bounds check can allow a one-byte write past the logical end of a temporal offset array. This may corrupt memory and cause the application to crash. The extent of the impact has not been demonstrated by a runtime test.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存写
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Red Hat Red Hat Enterprise Linux 10 - cpe:/a:redhat:enterprise_linux:10
Red Hat Red Hat Enterprise Linux 6 - cpe:/o:redhat:rhel_els:6
Red Hat Red Hat Enterprise Linux 7 - cpe:/o:redhat:rhel_els:7
Red Hat Red Hat Enterprise Linux 7 - cpe:/o:redhat:rhel_els:7
Red Hat Red Hat Enterprise Linux 8 - cpe:/a:redhat:enterprise_linux:8
Red Hat Red Hat Enterprise Linux 9 - cpe:/a:redhat:enterprise_linux:9
GStreamer gst-plugins-bad 0.0.0 ~ 1.28.3 -

II. Public POCs for CVE-2026-125707

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III. Intelligence Information for CVE-2026-125707

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Other References for CVE-2026-125707 (3)

Same Patch Batch · Red Hat · 2026-11-10 · 11 CVEs total

CVE-2026-120399 7.5 HIGH Flightctl-api: flightctl-remote-access: flightctl: unbounded tls handshake in conncontext
CVE-2026-124747 7.5 HIGH Busybox: heap buffer overflow in wget ftp resume when the resume offset exceeds the report
CVE-2026-125712 7.5 HIGH Gst-plugins-base: gst-plugins-base: missing bounds checks in rtcp sdes packet parsing
CVE-2026-125704 7.5 HIGH Gstreamer: gstreamer: use-after-free in gstreamer core buffer value deserialization
CVE-2026-125652 6.8 MEDIUM Keycloak-services: keycloak-services: client-level mandatory pkce bypass via login-actions
CVE-2026-125672 6.6 MEDIUM Cockpit: cockpit-storaged: tang keyserver address from an untrusted luks header clevis tok
CVE-2026-121885 6.5 MEDIUM Podman: untrusted image labels allow auto-update to restart arbitrary systemd units
CVE-2026-125706 5.5 MEDIUM Gst-plugins-bad: gst-plugins-bad: missing bounds checks in mpeg ps pes header parsing
CVE-2026-125703 5.5 MEDIUM Gst-plugins-bad: gst-plugins-bad: bounds check errors in mxf vanc packet handling
CVE-2026-125709 4.2 MEDIUM Libstdc++: overflow leaves streambuf in inconsistent state on i/o error.

IV. Related Vulnerabilities

Same product: Red Hat Enterprise Linux 10
Same vendor: Red Hat
Same weakness: CWE-787