CVE-2026-40962
Quick assessment
Affected
FFmpeg FFmpeg
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团队的一套可录制、转换以及流化音视频的完整解决方案。 FFmpeg 8.1之前版本存在安全漏洞，该漏洞源于CENC子样本数据处理存在整数溢出，可能导致越界写入。
Possible ATT&CK Techniques 1 AI
T1203 · Exploitation for Client Execution
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I. Basic Information for CVE-2026-40962
Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
FFmpeg before 8.1 has an integer overflow and resultant out-of-bounds write via CENC (Common Encryption) subsample data to libavformat/mov.c.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
整数溢出或超界折返
Source: CVE Program / CVE List V5
Vulnerability Title
FFmpeg 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
FFmpeg是FFmpeg团队的一套可录制、转换以及流化音视频的完整解决方案。 FFmpeg 8.1之前版本存在安全漏洞，该漏洞源于CENC子样本数据处理存在整数溢出，可能导致越界写入。
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
II. Public POCs for CVE-2026-40962
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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IV. Related Vulnerabilities
Same product: FFmpeg
-
CVE-2026-107698
FFmpeg before 7.1.4 and 8.0.2 SSRF via RTSP Redirect Handlin -
CVE-2026-107697
FFmpeg before 8.1.3 HLS Demuxer Security Check Bypass via pa -
CVE-2026-107696
FFmpeg through 9.0.2 Infinite Loop via RTSP Redirect Handlin -
CVE-2026-107695
FFmpeg before 8.1.3 HLS Demuxer Infinite Loop via Self-Refer -
CVE-2026-107677
FFmpeg through 9.0.2 DASH Demuxer Infinite Loop via Empty Se
Same vendor: FFmpeg
-
CVE-2026-107698
FFmpeg before 7.1.4 and 8.0.2 SSRF via RTSP Redirect Handlin -
CVE-2026-107696
FFmpeg through 9.0.2 Infinite Loop via RTSP Redirect Handlin -
CVE-2026-107697
FFmpeg before 8.1.3 HLS Demuxer Security Check Bypass via pa -
CVE-2026-107695
FFmpeg before 8.1.3 HLS Demuxer Infinite Loop via Self-Refer -
CVE-2026-107678
FFmpeg through 9.0.2 Stack Exhaustion via Recursive Free of
Same weakness: CWE-190
-
CVE-2026-105398
ImageMagick before 7.1.2-31 Heap Buffer Overflow via GetVirt -
CVE-2026-107446
containerd ≤1.0.18 overlaybd整数溢出漏洞 -
CVE-2026-107224
Excelize: A Zip64 uncompressed-size of 2^63 panics OpenFile/ -
CVE-2026-107217
Excelize ColumnNameToNumber: int64 overflow yields an out-of -
CVE-2026-106571
ImageMagick: Heap Buffer Over-Write in GetVirtualPixels api
V. Comments for CVE-2026-40962
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