CVE-2026-40686
| Summary |
In Exim before 4.99.2, when utf8 operators are enabled, there is an out-of-bounds read if large UTF-8 trailing characters are present (malformed UTF-8 header data). Information might be divulged within an error message produced during handling of an unrelated e-mail message.
|
| Publication Date |
May 1, 2026, 7:16 a.m. |
| Registration Date |
May 2, 2026, 4:06 a.m. |
| Last Update |
May 2, 2026, 2:44 a.m. |
|
CVSS3.1 : MEDIUM
|
| スコア |
5.3
|
| Vector |
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
| 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) |
なし |
Affected software configurations
| Configuration1 |
or higher |
or less |
more than |
less than |
| cpe:2.3:a:exim:exim:*:*:*:*:*:*:*:* |
|
|
|
4.99.2 |
Related information, measures and tools
Common Vulnerabilities List