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Original advisory / post

High Pre-CVE record

X.Org Serverにローカルから権限昇格される脆弱性

CVE-2026-93520 First seen on SecPulse

Summary

X.Org Serverのヒープベースのバッファオーバーフローの脆弱性で、ローカルの攻撃者が権限を昇格できるおそれがあります。攻撃には、対象システムで低権限のコードを実行できる状態にあることが必要です。影響を受ける版や修正版については最新の情報を確認してください。

AI summary

Written by an external AI model and may contain mistakes. Check the original description and references below before acting on it.

X.Org Serverのヒープベースのバッファオーバーフローの脆弱性で、ローカルの攻撃者が権限を昇格できるおそれがあります。攻撃には、対象システムで低権限のコードを実行できる状態にあることが必要です。影響を受ける版や修正版については最新の情報を確認してください。

Fix status by distribution

Fixed packages published by each distribution for this CVE

Original description The description as published by the source.

This vulnerability allows local attackers to escalate privileges on affected installations of X.Org Server. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The ZDI has assigned a CVSS rating of 7.8. The following CVEs are assigned: CVE-2026-93520.

(Zero Day Initiative Published Advisories: ZDI-26-765: X.Org Server XKB Heap-based Buffer Overflow Privilege Escalation Vulnerability)

Source: Zero Day Initiative Published Advisories NVD

References

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