CVE-2026-12706— Ffmpeg: ffmpeg: heap use-after-free read in rasc decoder decode_move()
Quick assessment
Affected
Red Hat Red Hat Enterprise Linux AI (RHEL AI) 3
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.
FFmpeg是FFmpeg组织开源的一套可录制、转换以及流化音视频的完整解决方案。 FFmpeg存在安全漏洞，该漏洞源于RASC视频解码器的decode_move()函数中存在释放后重用，攻击者可以通过提供特制AVI文件，导致拒绝服务（崩溃）。以下版本受到影响：Red Hat Enterprise Linux AI (RHEL AI) 3版本。
Possible ATT&CK Techniques 1 AI
T1203 · Exploitation for Client ExecutionAffected Version Matrix 10
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux AI (RHEL AI) 3 | any |
affected |
any |
unaffected | ||
any |
affected | ||
any |
affected | ||
any |
affected | ||
any |
affected | ||
any |
affected | ||
any |
affected | ||
| Red Hat | Red Hat OpenShift AI (RHOAI) | any |
unaffected |
any |
affected |
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I. Basic Information for CVE-2026-12706
Vulnerability Information
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Vulnerability Title
Ffmpeg: ffmpeg: heap use-after-free read in rasc decoder decode_move()
Source: CVE Program / CVE List V5
Vulnerability Description
A use-after-free vulnerability was found in FFmpeg's RASC video decoder. The decode_move() function initializes a read pointer into a decompressed buffer, but a subsequent reallocation of that same buffer during move-table processing leaves the pointer dangling. An attacker could exploit this by providing a specially crafted AVI file containing a malicious RASC video stream. When a user opens or plays the file, the decoder reads from freed heap memory, which could lead to a denial of service (crash).
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
释放后使用
Source: CVE Program / CVE List V5
Vulnerability Title
FFmpeg 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
FFmpeg是FFmpeg组织开源的一套可录制、转换以及流化音视频的完整解决方案。 FFmpeg存在安全漏洞，该漏洞源于RASC视频解码器的decode_move()函数中存在释放后重用，攻击者可以通过提供特制AVI文件，导致拒绝服务（崩溃）。以下版本受到影响：Red Hat Enterprise Linux AI (RHEL AI) 3版本。
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 AI (RHEL AI) 3 | - |
cpe:/a:redhat:enterprise_linux_ai:3
|
|
| Red Hat | Red Hat Enterprise Linux AI (RHEL AI) 3 | - |
cpe:/a:redhat:enterprise_linux_ai:3
|
|
| Red Hat | Red Hat Enterprise Linux AI (RHEL AI) 3 | - |
cpe:/a:redhat:enterprise_linux_ai:3
|
|
| Red Hat | Red Hat Enterprise Linux AI (RHEL AI) 3 | - |
cpe:/a:redhat:enterprise_linux_ai:3
|
|
| Red Hat | Red Hat Enterprise Linux AI (RHEL AI) 3 | - |
cpe:/a:redhat:enterprise_linux_ai:3
|
|
| Red Hat | Red Hat Enterprise Linux AI (RHEL AI) 3 | - |
cpe:/a:redhat:enterprise_linux_ai:3
|
|
| Red Hat | Red Hat Enterprise Linux AI (RHEL AI) 3 | - |
cpe:/a:redhat:enterprise_linux_ai:3
|
|
| Red Hat | Red Hat Enterprise Linux AI (RHEL AI) 3 | - |
cpe:/a:redhat:enterprise_linux_ai:3
|
|
| Red Hat | Red Hat OpenShift AI (RHOAI) | - |
cpe:/a:redhat:openshift_ai
|
|
| Red Hat | Red Hat OpenShift AI (RHOAI) | - |
cpe:/a:redhat:openshift_ai
|
|
II. Public POCs for CVE-2026-12706
| # | POC Description | Source Link | Shenlong Link |
|---|
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Patches & Fixes for CVE-2026-12706 (1)
Vendor Advisories for CVE-2026-12706 (1)
-
🔗 2490710 – (CVE-2026-12706) CVE-2026-12706 ffmpeg: ffmpeg: heap use-after-free read in RASC decoder decode_move() Read full article issue-tracking x_refsource_REDHAT
Mailing List Discussions for CVE-2026-12706 (1)
Other References for CVE-2026-12706 (1)
Same Patch Batch · Red Hat · 2026-06-19 · 6 CVEs total
| CVE-2026-56208 | 7.6 HIGH | Libaom: libaom: heap buffer overflow in av1 encoder first-pass stats buffer via lap mode |
| CVE-2026-56209 | 7.1 HIGH | Libaom: libaom: arbitrary address write via svc layer context oob and cyclic refresh map p |
| CVE-2026-56210 | 7.1 HIGH | Libaom: libaom: heap-buffer-overflow read via missing bounds check in ctrl_set_layer_id |
| CVE-2026-56211 | 7.1 HIGH | Libaom: libaom: remote code execution via svc layer context handling with attacker-control |
| CVE-2026-12726 | 6.3 MEDIUM | Awx: automation-controller: awx: github webhook second-order ssrf via unvalidated statuses |
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V. Comments for CVE-2026-12706
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