CERT-FR Advisory: Multiple Vulnerabilities in Xen Hypervisor Expose Data Confidentiality and Integrity
CERT-FR issued advisory CERTFR-2026-AVI-1447 on 03 November 2026 covering multiple vulnerabilities in Xen affecting all versions later than 4.6 without the latest security patch. The flaws allow an attacker to compromise data confidentiality and data integrity. CERT-FR references the official Xen security advisory XSA-523 published the same day and lists two associated CVE identifiers.
Entenda a falha
A vulnerabilidade
CERT-FR advisory CERTFR-2026-AVI-1447 covers multiple vulnerabilities in the Xen hypervisor, tracked as CVE-2026-102703 and CVE-2026-102704. The sources do not say which component is affected, nor give a severity order for the two CVEs. They also do not describe what an attacker needs (network reach, authentication, configuration). They state only that an attacker can compromise data confidentiality and data integrity. All Xen versions later than 4.6 that lack the latest security patch are affected. The fix is in the patches referenced by Xen advisory XSA-523.
Como foi descoberta
The articles do not say who found the flaws or how. They say only that the Xen project published security advisory XSA-523 on 3 November 2026, and that CERT-FR issued its advisory the same day, referencing XSA-523 and the two CVE identifiers.
Explicação gerada por IA a partir da matéria e dos artigos, em 04/11/2026 14:28.
Detalhes técnicos
- Vulnerabilities impact data confidentiality and data integrity.
- Affected: Xen versions later than 4.6 without the latest security correctif.
- Two CVEs assigned: CVE-2026-102703, CVE-2026-102704.
- Referenced source: Xen security bulletin XSA-523 (03 November 2026).
Remediação
- Apply the patches referenced in the Xen XSA-523 security bulletin.
Linha do tempo
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CERT-FR Advisory: Multiple Vulnerabilities in Xen Hypervisor Expose Data Confidentiality and Integrity
ler a análise desta fonte ocultar
CERT-FR issued advisory CERTFR-2026-AVI-1447 on 03 November 2026 covering multiple vulnerabilities in Xen affecting all versions later than 4.6 without the latest security patch. The flaws allow an attacker to compromise data confidentiality and data integrity. CERT-FR references the official Xen security advisory XSA-523 published the same day and lists two associated CVE identifiers.
Technical Details
- Vulnerabilities impact data confidentiality and data integrity.
- Affected: Xen versions later than 4.6 without the latest security correctif.
- Two CVEs assigned: CVE-2026-102703, CVE-2026-102704.
- Referenced source: Xen security bulletin XSA-523 (03 November 2026).
Remediation
- Apply the patches referenced in the Xen XSA-523 security bulletin.