CVE-2026-26824
| Summary |
libxls through version 1.6.3 contains a use of uninitialized memory vulnerability in the OLE container parser. Memory allocated for the Master Sector Allocation Table (MSAT) in read_MSAT() is not fully initialized before being consumed by ole2_validate_sector_chain(), which may result in application crashes or potential information disclosure when processing a crafted XLS file
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| Publication Date |
June 4, 2026, 5:16 a.m. |
| Registration Date |
June 5, 2026, 4:10 a.m. |
| Last Update |
June 5, 2026, 3:41 a.m. |
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CVSS3.1 : MEDIUM
|
| スコア |
6.5
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| Vector |
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L |
| 攻撃元区分(AV) |
ネットワーク |
| 攻撃条件の複雑さ(AC) |
低 |
| 攻撃に必要な特権レベル(PR) |
不要 |
| 利用者の関与(UI) |
不要 |
| 影響の想定範囲(S) |
変更なし |
| 機密性への影響(C) |
低 |
| 完全性への影響(I) |
なし |
| 可用性への影響(A) |
低 |
Affected software configurations
| Configuration1 |
or higher |
or less |
more than |
less than |
| cpe:2.3:a:libxls_project:libxls:*:*:*:*:*:*:*:* |
|
1.6.3 |
|
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Related information, measures and tools
Common Vulnerabilities List