CVE-2025-27105
AugAssign evaluation order causing OOB write within the object in Vyper
EPSS 0.53%
描述
vyper is a Pythonic Smart Contract Language for the EVM. Vyper handles AugAssign statements by first caching the target location to avoid double evaluation. However, in the case when target is an access to a DynArray and the rhs modifies the array, the cached target will evaluate first, and the bounds check will not be re-evaluated during the write portion of the statement. This issue has been addressed in version 0.4.1 and all users are advised to upgrade. There are no known workarounds for this vulnerability.
如何修補 CVE-2025-27105
要修補 CVE-2025-27105,請將受影響套件升級到下列已修補版本。
- —升級至 0.4.1 或更新版本
- —升級至 0.4.1 或更新版本
CVE-2025-27105 正在被利用嗎?
低 — EPSS 為 0.5%,目前沒有觀察到大規模利用活動。
受影響套件(2)
- from 0, < 0.4.1
- from 0, < 0.4.1
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N |