CVE-2026-52721— Gstreamer1-plugins-bad-free: gstreamer: multiple out-of-bounds reads in pcapparse ipv4/tcp header parsing
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.
GStreamer是GStreamer组织开源的一套用于处理流媒体的框架。 GStreamer存在缓冲区错误漏洞，该漏洞源于GStreamer的pcapparse元素中存在多个越界读取，可能导致畸形PCAP记录在IPv4/TCP标头解析期间触发缓冲区边界外的读取，本地攻击者可能诱骗用户处理特制PCAP文件，从而导致崩溃或信息泄露。
Possible ATT&CK Techniques 2 AI
T1005 · Data from Local System T1203 · Exploitation for Client ExecutionAffected Version Matrix 6
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 | any |
affected |
| Red Hat | Red Hat Enterprise Linux 6 | any |
unknown |
| Red Hat | Red Hat Enterprise Linux 7 | any |
affected |
any |
affected | ||
| Red Hat | Red Hat Enterprise Linux 8 | any |
affected |
| Red Hat | Red Hat Enterprise Linux 9 | any |
affected |
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I. Basic Information for CVE-2026-52721
Vulnerability Information
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Vulnerability Title
Gstreamer1-plugins-bad-free: gstreamer: multiple out-of-bounds reads in pcapparse ipv4/tcp header parsing
Source: CVE Program / CVE List V5
Vulnerability Description
Multiple out-of-bounds read vulnerabilities were found in GStreamer's pcapparse element. Malformed PCAP records can trigger reads beyond buffer boundaries during IPv4/TCP header parsing. This element is primarily used in debugging pipelines, limiting real-world exposure. A local attacker could trick a user into processing a specially crafted PCAP file, potentially leading to a crash or information disclosure.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存读
Source: CVE Program / CVE List V5
Vulnerability Title
GStreamer 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
GStreamer是GStreamer组织开源的一套用于处理流媒体的框架。 GStreamer存在缓冲区错误漏洞，该漏洞源于GStreamer的pcapparse元素中存在多个越界读取，可能导致畸形PCAP记录在IPv4/TCP标头解析期间触发缓冲区边界外的读取，本地攻击者可能诱骗用户处理特制PCAP文件，从而导致崩溃或信息泄露。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 | - |
cpe:/o:redhat:enterprise_linux:10
|
|
| Red Hat | Red Hat Enterprise Linux 6 | - |
cpe:/o:redhat:enterprise_linux:6
|
|
| Red Hat | Red Hat Enterprise Linux 7 | - |
cpe:/o:redhat:enterprise_linux:7
|
|
| Red Hat | Red Hat Enterprise Linux 7 | - |
cpe:/o:redhat:enterprise_linux:7
|
|
| Red Hat | Red Hat Enterprise Linux 8 | - |
cpe:/o:redhat:enterprise_linux:8
|
|
| Red Hat | Red Hat Enterprise Linux 9 | - |
cpe:/o:redhat:enterprise_linux:9
|
|
II. Public POCs for CVE-2026-52721
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Patches & Fixes for CVE-2026-52721 (1)
Vendor Advisories for CVE-2026-52721 (1)
Other References for CVE-2026-52721 (1)
Same Patch Batch · Red Hat · 2026-06-15 · 9 CVEs total
| CVE-2026-52720 | 8.8 HIGH | Gstreamer1-plugins-bad-free: gstreamer: heap buffer overflow via crafted vnc server rectan |
| CVE-2026-53705 | 7.6 HIGH | Gstreamer1-plugins-good: gstreamer: heap buffer overflow in wavpack decoder via integer ov |
| CVE-2026-52722 | 7.1 HIGH | Gstreamer1-plugins-bad-free: gstreamer: signed integer overflow in vmnc decoder cursor pay |
| CVE-2026-53703 | 7.1 HIGH | Gstreamer1-plugins-ugly-free: gstreamer: out-of-bounds read in realmedia demuxer audio str |
| CVE-2026-53704 | 7.1 HIGH | Gstreamer1-plugins-ugly-free: gstreamer: out-of-bounds read in realmedia demuxer fileinfo |
| CVE-2026-52719 | 7.1 HIGH | Gstreamer1-plugins-bad-free: gstreamer: out-of-bounds read via jpeg segment length validat |
| CVE-2026-52718 | 6.5 MEDIUM | Gstreamer1-plugins-bad-free: gstreamer: denial of service via av1 tile_list_obu parser byt |
| CVE-2026-44188 | 5.3 MEDIUM | Ansible-lightspeed: ansible lightspeed: session hijacking and unauthorized data access due |
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