> CVE-2026-56209 [CRITICAL]

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PUBLISHED
2026-06-19 17:16
MODIFIED
2026-06-19 17:16
CVSS_SCORE V3
9.1
EPSS (Prob. Exploit)
0.64%
Top 49.7%
DATA SOURCES:
NVD 🔗 2026-06-19 RED HAT 🔗 2026-06-21 CWE MITRE 🔗 2026-11-01 FIRST EPSS 🔗 2026-10-25

> DESCRIPTION

An arbitrary address write vulnerability was found in libaom, the reference AV1 codec implementation. A missing bounds check in the SVC (Scalable Video Coding) layer ID control function allows an attacker to inject an arbitrary pointer into the cyclic refresh map field via crafted image pixel values. The encoder then writes approximately 1,200 bytes at the attacker-controlled address. This is fully deterministic and does not require a separate information leak. An attacker who can supply frames to a network-facing libaom encoder with SVC enabled could exploit this for denial of service or potential code execution.

> AFFECTED_PRODUCTS

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

> CVSS V3 METRICS

CVSS_VECTOR
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
EXPLOITABILITY
3.9
IMPACT
5.2

> MÉTRIQUES CVSS DÉTAILLÉES

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
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
None (N)
Aucune interaction utilisateur nécessaire
S (Périmètre)
Scope
Unchanged (U)
Impact reste dans le périmètre du composant compromis
C (Impact Confidentialité)
Confidentiality Impact
None (N)
Aucune divulgation 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
None
Aucune divulgation 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

Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update
An update for Red Hat Hardened Images RPMs is now available.
Red Hat Security Advisory: RHEL AI 3.5 RPM runtime CVE fix - aom
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 3.4 RPM runtime CVE fix - aom
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 - aom
AIPCC Security Alerts identified CVEs in the 3.3 release of base-images. The CVE(s) are listed with a severity level of "Important" or higher.
Red Hat Security Advisory: RHOAI 3.4.4 - Red Hat OpenShift AI
Updated images are now available for Red Hat OpenShift AI.
Red Hat Security Advisory: Red Hat AI Inference Server 3.2.2 (ROCm)
Red Hat AI Inference Server 3.2.2 (ROCm) is now available.
Red Hat Security Advisory: Red Hat AI Inference Server Model Optimization Tools 3.2.2 (CUDA)
Red Hat AI Inference Server Model Optimization Tools 3.2.2 (CUDA) is now available.
Red Hat Security Advisory: Red Hat AI Inference Server 3.2.2 (CUDA)
Red Hat AI Inference Server 3.2.2 (CUDA) is now available.
Red Hat Security Advisory: Red Hat AI Base Images 3.4.2 (ROCm 6.4)
Red Hat AI Base Images 3.4.2 (ROCm 6.4) is now available.
Red Hat Security Advisory: Red Hat AI Base Images 3.4.2 (CUDA 13.0)
Red Hat AI Base Images 3.4.2 (CUDA 13.0) is now available.
Red Hat Security Advisory: Red Hat AI Base Images 3.4.2 (CUDA 12.9)
Red Hat AI Base Images 3.4.2 (CUDA 12.9) is now available.
Red Hat Security Advisory: Red Hat AI Base Images 3.4.2 (ROCm 7.1)
Red Hat AI Base Images 3.4.2 (ROCm 7.1) is now available.
Red Hat Security Advisory: Red Hat AI Base Images 3.4.2 (Spyre)
Red Hat AI Base Images 3.4.2 (Spyre) is now available.
Red Hat Security Advisory: Red Hat AI Base Images 3.4.2 (Gaudi)
Red Hat AI Base Images 3.4.2 (Gaudi) is now available.
Red Hat Security Advisory: Red Hat AI Base Images 3.4.2 (CPU)
Red Hat AI Base Images 3.4.2 (CPU) is now available.
Red Hat Security Advisory: Red Hat AI Base Images 3.4.2 (TPU)
Red Hat AI Base Images 3.4.2 (TPU) is now available.
Red Hat Security Advisory: Red Hat AI Base Images 3.5.1 (ROCm 7.14)
Red Hat AI Base Images 3.5.1 (ROCm 7.14) is now available.
Red Hat Security Advisory: Red Hat AI Base Images 3.5.1 (CUDA 12.9)
Red Hat AI Base Images 3.5.1 (CUDA 12.9) is now available.
Red Hat Security Advisory: Red Hat AI Base Images 3.5.1 (Spyre)
Red Hat AI Base Images 3.5.1 (Spyre) is now available.
Red Hat Security Advisory: Red Hat AI Base Images 3.5.1 (CUDA 13.0)
Red Hat AI Base Images 3.5.1 (CUDA 13.0) is now available.
Red Hat Security Advisory: Red Hat AI Base Images 3.5.1 (Rubin)
Red Hat AI Base Images 3.5.1 (Rubin) is now available.
Red Hat Security Advisory: Red Hat AI Base Images 3.5.1 (Gaudi)
Red Hat AI Base Images 3.5.1 (Gaudi) is now available.
Red Hat Security Advisory: Red Hat AI Base Images 3.5.1 (TPU)
Red Hat AI Base Images 3.5.1 (TPU) is now available.
Red Hat Security Advisory: Red Hat AI Base Images 3.5.1 (CPU)
Red Hat AI Base Images 3.5.1 (CPU) is now available.
Red Hat Security Advisory: Red Hat AI Base Images 3.5.1 (Neuron)
Red Hat AI Base Images 3.5.1 (Neuron) 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 3.5.2 (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 (Neuron)
Red Hat AI Base Images 3.5.2 (Neuron) is now available.
Red Hat Security Advisory: Red Hat AI Base Images 3.5.2 (CPU)
Red Hat AI Base Images 3.5.2 (CPU) is now available.
Red Hat Security Advisory: Red Hat Enterprise Linux AI 3.3.7 security update
Updated Red Hat Enterprise Linux AI 3.3.7 container disk images are now available.
Red Hat Security Advisory: Red Hat AI Base Images 3.5.2 (CUDA)
Red Hat AI Base Images 3.5.2 (CUDA) is now available.
Red Hat Security Advisory: Red Hat Enterprise Linux AI 3.3.7 security update
Updated Red Hat Enterprise Linux AI 3.3.7 container images are now available.
Red Hat Security Advisory: RHOAI 3.4.5 - Red Hat OpenShift AI
Updated images are now available for Red Hat OpenShift AI.

> RED HAT SEVERITY ASSESSMENT

THREAT SEVERITY
Important

> HISTORIQUE DES MODIFICATIONS

Première apparition
19/06/2026 17:16
Source: NVD
📊 ENRICHISSEMENT 01/07/2026 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.
📊 ENRICHISSEMENT 21/06/2026 05:01
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
{ "severity_scale": null, "threat_severity": "Important" }
Nouvelle valeur:
{ "threat_severity": "Important", "severity_scale": null }
📊 ENRICHISSEMENT 20/06/2026 23:30
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
{ "severity_scale": null, "threat_severity": "Important" }
Nouvelle valeur:
{ "threat_severity": "Important", "severity_scale": null }
📊 ENRICHISSEMENT 20/06/2026 22:30
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
{ "severity_scale": null, "threat_severity": "Important" }
Nouvelle valeur:
{ "threat_severity": "Important", "severity_scale": null }
📊 ENRICHISSEMENT 20/06/2026 21:30
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
{ "severity_scale": null, "threat_severity": "Important" }
Nouvelle valeur:
{ "threat_severity": "Important", "severity_scale": null }
📊 ENRICHISSEMENT 20/06/2026 20:30
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
{ "severity_scale": null, "threat_severity": "Important" }
Nouvelle valeur:
{ "threat_severity": "Important", "severity_scale": null }
📊 ENRICHISSEMENT 20/06/2026 19:30
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
{ "severity_scale": null, "threat_severity": "Important" }
Nouvelle valeur:
{ "threat_severity": "Important", "severity_scale": null }
📊 ENRICHISSEMENT 20/06/2026 18:30
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
{ "severity_scale": null, "threat_severity": "Important" }
Nouvelle valeur:
{ "threat_severity": "Important", "severity_scale": null }
📊 ENRICHISSEMENT 20/06/2026 17:30
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
{ "severity_scale": null, "threat_severity": "Important" }
Nouvelle valeur:
{ "threat_severity": "Important", "severity_scale": null }
📊 ENRICHISSEMENT 20/06/2026 16:30
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
{ "severity_scale": null, "threat_severity": "Important" }
Nouvelle valeur:
{ "threat_severity": "Important", "severity_scale": null }
📊 ENRICHISSEMENT 20/06/2026 15:30
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
{ "severity_scale": null, "threat_severity": "Important" }
Nouvelle valeur:
{ "threat_severity": "Important", "severity_scale": null }
📊 ENRICHISSEMENT 20/06/2026 14:30
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
{ "severity_scale": null, "threat_severity": "Important" }
Nouvelle valeur:
{ "threat_severity": "Important", "severity_scale": null }
📊 ENRICHISSEMENT 20/06/2026 13:30
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
{ "severity_scale": null, "threat_severity": "Important" }
Nouvelle valeur:
{ "threat_severity": "Important", "severity_scale": null }
📊 ENRICHISSEMENT 20/06/2026 12:30
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
{ "severity_scale": null, "threat_severity": "Important" }
Nouvelle valeur:
{ "threat_severity": "Important", "severity_scale": null }
📊 ENRICHISSEMENT 20/06/2026 11:30
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
{ "severity_scale": null, "threat_severity": "Important" }
Nouvelle valeur:
{ "threat_severity": "Important", "severity_scale": null }
📊 ENRICHISSEMENT 20/06/2026 10:30
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
{ "severity_scale": null, "threat_severity": "Important" }
Nouvelle valeur:
{ "threat_severity": "Important", "severity_scale": null }
📊 ENRICHISSEMENT 20/06/2026 09:30
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
{ "severity_scale": null, "threat_severity": "Important" }
Nouvelle valeur:
{ "threat_severity": "Important", "severity_scale": null }
📊 ENRICHISSEMENT 20/06/2026 08:30
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
{ "severity_scale": null, "threat_severity": "Important" }
Nouvelle valeur:
{ "threat_severity": "Important", "severity_scale": null }
📊 ENRICHISSEMENT 20/06/2026 07:30
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
{ "severity_scale": null, "threat_severity": "Important" }
Nouvelle valeur:
{ "threat_severity": "Important", "severity_scale": null }
📊 ENRICHISSEMENT 20/06/2026 06:30
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
{ "severity_scale": null, "threat_severity": "Important" }
Nouvelle valeur:
{ "threat_severity": "Important", "severity_scale": null }
📊 ENRICHISSEMENT 20/06/2026 05:30
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
{ "severity_scale": null, "threat_severity": "Important" }
Nouvelle valeur:
{ "threat_severity": "Important", "severity_scale": null }
📊 ENRICHISSEMENT 20/06/2026 04:30
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
{ "severity_scale": null, "threat_severity": "Important" }
Nouvelle valeur:
{ "threat_severity": "Important", "severity_scale": null }
📊 ENRICHISSEMENT 20/06/2026 03:30
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
{ "severity_scale": null, "threat_severity": "Important" }
Nouvelle valeur:
{ "threat_severity": "Important", "severity_scale": null }
📊 ENRICHISSEMENT 20/06/2026 02:30
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
{ "severity_scale": null, "threat_severity": "Important" }
Nouvelle valeur:
{ "threat_severity": "Important", "severity_scale": null }
📊 ENRICHISSEMENT 20/06/2026 01:30
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
{ "severity_scale": null, "threat_severity": "Important" }
Nouvelle valeur:
{ "threat_severity": "Important", "severity_scale": null }
📊 ENRICHISSEMENT 20/06/2026 00:30
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
N/A
Nouvelle valeur:
{ "threat_severity": "Important", "severity_scale": null }
📊 ENRICHISSEMENT 20/06/2026 00:30
REDHAT
Champ modifié: Red Hat
Ancienne valeur:
Non
Nouvelle valeur:
Oui
Total des modifications: 27 Dernière mise à jour: 4 months ago

> REFERENCES

https://access.redhat.com/security/cve/CVE-2026-56209
https://aomedia.googlesource.com/aom/+/a93ba0ffaa
https://bugzilla.redhat.com/show_bug.cgi?id=2490800
https://issues.chromium.org/issues/503993984
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