CVE-2026-23557
| Summary |
Any guest can cause xenstored to crash by issuing a XS_RESET_WATCHES command within a transaction due to an assert() triggering.
In case xenstored was built with NDEBUG #defined nothing bad will happen, as assert() is doing nothing in this case. Note that the default is not to define NDEBUG for xenstored builds even in release builds of Xen.
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| Publication Date |
May 19, 2026, 11:16 p.m. |
| Registration Date |
May 20, 2026, 4:12 a.m. |
| Last Update |
May 20, 2026, 3:56 a.m. |
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CVSS3.1 : MEDIUM
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| スコア |
6.5
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| Vector |
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H |
| 攻撃元区分(AV) |
ローカル |
| 攻撃条件の複雑さ(AC) |
低 |
| 攻撃に必要な特権レベル(PR) |
低 |
| 利用者の関与(UI) |
不要 |
| 影響の想定範囲(S) |
変更あり |
| 機密性への影響(C) |
なし |
| 完全性への影響(I) |
なし |
| 可用性への影響(A) |
高 |
Affected software configurations
| Configuration1 |
or higher |
or less |
more than |
less than |
| cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:* |
4.2.0 |
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|
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Related information, measures and tools
Common Vulnerabilities List