> CVE-2026-64830 [HIGH]

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PUBLISHED
2026-07-22 17:16
MODIFIED
2026-07-22 17:16
CVSS_SCORE V3
8.7
EPSS (Prob. Exploit)
0.65%
Top 49.6%
DATA SOURCES:
NVD đź”— 2026-07-22 CWE MITRE đź”— 2026-11-01 FIRST EPSS đź”— 2026-10-25 OSV đź”— 2026-11-02

> DESCRIPTION

FFmpeg versions 2.1 through 8.1.2 contains a heap buffer overflow vulnerability in the VobSub subtitle demuxer that allows attackers to corrupt adjacent heap memory by supplying a malicious .sub/.idx subtitle file declaring more distinct stream IDs than the fixed-size array bounds in libavformat/mpeg.c. Attackers can craft a subtitle file with excessive distinct stream IDs to trigger unbounded writes beyond the vobsub->q[] array boundary via ff_subtitles_queue_insert(), potentially achieving arbitrary code execution in any application using FFmpeg's VobSub demuxer.

> AFFECTED_PRODUCTS

ℹ️ Aucun produit affecté n'a encore été publié par NVD pour cette CVE.

> CVSS V3 METRICS

CVSS_VECTOR
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

> MÉTRIQUES CVSS DÉTAILLÉES

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Métrique Valeur Interprétation
AV (Vecteur d'Attaque)
Attack Vector
Network (N)
Exploit possible à distance via réseau (HTTP, API, etc.)
AC (Complexité d'Attaque)
Attack Complexity
Low (L)
Peu de conditions requises pour exploiter
PR (Privilèges Requis)
Privileges Required
None (N)
Aucune authentification requise
UI (Interaction Utilisateur)
User Interaction
Unknown (P)
Interaction inconnue
S (Périmètre)
Scope
Unchanged (U)
Impact reste dans le périmètre du composant compromis
C (Impact Confidentialité)
Confidentiality Impact
High (H)
Divulgation totale d'informations
I (Impact Intégrité)
Integrity Impact
High (H)
Modification totale des données possible
A (Impact Disponibilité)
Availability Impact
High (H)
Interruption totale du service possible

> RÉSUMÉ DES IMPACTS

Confidentialité
High
Divulgation totale d'informations
Intégrité
High
Modification totale des données possible
Disponibilité
High
Interruption totale du service possible

> WEAKNESSES

CWE-787

> CWE DETAILED DESCRIPTIONS

CWE-787: Out-of-bounds Write - The product writes data past the end, or before the beginning, of the intended buffer.

> RED HAT SECURITY ADVISORIES

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Red Hat AI Inference Server 3.2.2 (ROCm) is now available.
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AIPCC Security Alerts identified CVEs in the 3.4 release of base-images. The CVE(s) are listed with a severity level of "Important" or higher.
Red Hat Security Advisory: RHEL AI 3.3 RPM runtime CVE fix - ffmpeg
AIPCC Security Alerts identified CVEs in the 3.5 release of base-images. The CVE(s) are listed with a severity level of "Important" or higher.
Red Hat Security Advisory: RHEL AI 3.0 RPM runtime CVE fix - ffmpeg
AIPCC Security Alerts identified CVEs in the 3.0 release of base-images. The CVE(s) are listed with a severity level of "Important" or higher.
Red Hat Security Advisory: Red Hat AI Base Images 3.3.4 (Neuron)
Red Hat AI Base Images 3.3.4 (Neuron) is now available.
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Red Hat AI Base Images 3.3.4 (CUDA 12.9) is now available.
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Red Hat AI Base Images 3.3.4 (Spyre) is now available.
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Red Hat AI Base Images 3.3.4 (ROCm 7.0) is now available.
Red Hat Security Advisory: Red Hat AI Base Images 3.3.4 (CUDA 13.0)
Red Hat AI Base Images 3.3.4 (CUDA 13.0) is now available.
Red Hat Security Advisory: Red Hat AI Base Images 3.3.4 (ROCm 6.4)
Red Hat AI Base Images 3.3.4 (ROCm 6.4) is now available.
Red Hat Security Advisory: Red Hat AI Base Images 3.3.4 (TPU)
Red Hat AI Base Images 3.3.4 (TPU) is now available.
Red Hat Security Advisory: Red Hat AI Base Images 3.3.4 (CPU)
Red Hat AI Base Images 3.3.4 (CPU) is now available.
Red Hat Security Advisory: Red Hat AI Base Images 3.5.2 (Gaudi)
Red Hat AI Base Images 3.5.2 (Gaudi) is now available.
Red Hat Security Advisory: Red Hat AI Base Images 3.4.3 (ROCm 6.4)
Red Hat AI Base Images 3.4.3 (ROCm 6.4) is now available.
Red Hat Security Advisory: Red Hat AI Base Images 3.4.3 (ROCm 7.1)
Red Hat AI Base Images 3.4.3 (ROCm 7.1) is now available.
Red Hat Security Advisory: Red Hat AI Base Images 3.4.3 (CUDA 12.9)
Red Hat AI Base Images 3.4.3 (CUDA 12.9) is now available.
Red Hat Security Advisory: Red Hat AI Base Images 3.4.3 (CUDA 13.0)
Red Hat AI Base Images 3.4.3 (CUDA 13.0) is now available.
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Red Hat AI Base Images 3.4.3 (Spyre) is now available.
Red Hat Security Advisory: Red Hat AI Base Images 3.4.3 (CPU)
Red Hat AI Base Images 3.4.3 (CPU) is now available.
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Red Hat Security Advisory: Red Hat AI Base Images 3.4.3 (TPU)
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Red Hat Security Advisory: Red Hat AI Base Images 3.4.3 (Neuron)
Red Hat AI Base Images 3.4.3 (Neuron) is now available.
Red Hat Security Advisory: Red Hat AI Base Images 3.5.2 (Spyre)
Red Hat AI Base Images 3.5.2 (Spyre) is now available.
Red Hat Security Advisory: Red Hat AI Base Images 3.5.2 (ROCm 7.14)
Red Hat AI Base Images 3.5.2 (ROCm 7.14) is now available.
Red Hat Security Advisory: Red Hat AI Base Images 3.5.2 (TPU)
Red Hat AI Base Images 3.5.2 (TPU) is now available.
Red Hat Security Advisory: Red Hat AI Base Images 3.5.2 (CUDA 13.0)
Red Hat AI Base Images 3.5.2 (CUDA 13.0) is now available.
Red Hat Security Advisory: Red Hat AI Base Images 3.5.2 (Rubin)
Red Hat AI Base Images 3.5.2 (Rubin) is now available.
Red Hat Security Advisory: Red Hat AI Base Images 3.5.2 (Neuron)
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Red Hat Security Advisory: Red Hat AI Base Images 3.5.2 (CPU)
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Red Hat Security Advisory: Red Hat AI Base Images 3.2.4 (CPU)
Red Hat AI Base Images 3.2.4 (CPU) is now available.
Red Hat Security Advisory: Red Hat AI Base Images 3.3.5 (CUDA 12.9)
Red Hat AI Base Images 3.3.5 (CUDA 12.9) is now available.
Red Hat Security Advisory: Red Hat AI Base Images 3.2.4 (Spyre)
Red Hat AI Base Images 3.2.4 (Spyre) is now available.
Red Hat Security Advisory: Red Hat AI Base Images 3.2.4 (ROCm 7.0)
Red Hat AI Base Images 3.2.4 (ROCm 7.0) is now available.
Red Hat Security Advisory: Red Hat AI Base Images 3.3.5 (CUDA 13.0)
Red Hat AI Base Images 3.3.5 (CUDA 13.0) is now available.
Red Hat Security Advisory: Red Hat AI Base Images 3.2.4 (CUDA 12.9)
Red Hat AI Base Images 3.2.4 (CUDA 12.9) is now available.
Red Hat Security Advisory: Red Hat AI Base Images 3.2.4 (ROCm 6.4)
Red Hat AI Base Images 3.2.4 (ROCm 6.4) is now available.
Red Hat Security Advisory: Red Hat AI Base Images 3.3.5 (Spyre)
Red Hat AI Base Images 3.3.5 (Spyre) is now available.
Red Hat Security Advisory: Red Hat AI Base Images 3.2.4 (TPU)
Red Hat AI Base Images 3.2.4 (TPU) is now available.
Red Hat Security Advisory: Red Hat AI Base Images 3.3.5 (CPU)
Red Hat AI Base Images 3.3.5 (CPU) is now available.
Red Hat Security Advisory: Red Hat AI Inference Model Optimization Tools 3.5.2 (CUDA)
Red Hat AI Inference Model Optimization Tools 3.5.2 (CUDA) is now available.
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Red Hat Security Advisory: Red Hat AI Inference 3.5.2 (ROCm)
Red Hat AI Inference 3.5.2 (ROCm) is now available.
Red Hat Security Advisory: Red Hat AI Inference 3.5.2 (cpu)
Red Hat AI Inference 3.5.2 (cpu) is now available.
Red Hat Security Advisory: Red Hat AI Inference 3.5.2 (spyre)
Red Hat AI Inference 3.5.2 (spyre) is now available.
Red Hat Security Advisory: Red Hat AI Inference 3.5.2 (cuda)
Red Hat AI Inference 3.5.2 (cuda) is now available.
Red Hat Security Advisory: Red Hat AI Base Images 3.2.5 (CUDA 12.9)
Red Hat AI Base Images 3.2.5 (CUDA 12.9) is now available.
Red Hat Security Advisory: RHOAI 3.4.5 - Red Hat OpenShift AI
Updated images are now available for Red Hat OpenShift AI.
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Updated Red Hat Enterprise Linux AI 3.5.2 container images are now available.
Red Hat Security Advisory: Red Hat Enterprise Linux AI 3.5.2 enhancement update
Updated Red Hat Enterprise Linux AI 3.5.2 container disk images are now available.

> OSV (GOOGLE OPEN SOURCE VULNERABILITIES)

FFmpeg 2.1 - 8.1.2 Heap Buffer Overflow via VobSub Subtitle Demuxer

AFFECTED PACKAGES:
Unknown / Unknown
30 versions affected

> HISTORIQUE DES MODIFICATIONS

Première apparition
22/07/2026 17:16
Source: NVD
đź“Š ENRICHISSEMENT 01/08/2026 06:01
CWE
Champ modifié: Description CWE
Ancienne valeur:
N/A
Nouvelle valeur:
CWE-787: Out-of-bounds Write - The product writes data past the end, or before the beginning, of the intended buffer.
Total des modifications: 1 Dernière mise à jour: 3 months ago

> REFERENCES

https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/dbd495f066a85ba96b17433f4306582aa37...
https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/23657
https://www.vulncheck.com/advisories/ffmpeg-heap-buffer-overflow-via-vobsub-subt...
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