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Original advisory / post

High Pre-CVE record

X.Org Serverのヒープバッファオーバーフローで権限を昇格される脆弱性

CVE-2026-93517 First seen on SecPulse

Summary

X.Org ServerのGLX RenderLarge処理に、ヒープベースのバッファオーバーフローの脆弱性が見つかりました。ローカルの攻撃者が権限を昇格させるおそれがあり、ZDIはCVSSを7.8と評価しています。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が必要です。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GLX RenderLarge処理に、ヒープベースのバッファオーバーフローの脆弱性が見つかりました。ローカルの攻撃者が権限を昇格させるおそれがあり、ZDIはCVSSを7.8と評価しています。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が必要です。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-2026-93517.

(Zero Day Initiative Published Advisories: ZDI-26-762: X.Org Server GLX RenderLarge Heap-based Buffer Overflow Privilege Escalation Vulnerability)

Source: Zero Day Initiative Published Advisories NVD

References

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