CVE-2026-33603
5.3
MEDIUM
CVSS 3.1
EPSS 0.22%
描述
Attacker can use a specially crafted base64 exchange between Dovecot and Client to fake SCRAM TLS channel binding. This requires that the attacker is able to position itself between Dovecot and the client connection. If successful, the attacker can eavesdrop communications between Dovecot and client as MITM proxy. Install fixed version. No publicly available exploits are known.
如何修補 CVE-2026-33603
要修補 CVE-2026-33603,請將受影響套件升級到下列已修補版本。
- —升級至 1:2.3.13+dfsg1-2+deb11u4 或更新版本
CVE-2026-33603 正在被利用嗎?
低 — EPSS 為 0.2%,目前沒有觀察到大規模利用活動。
受影響套件(1)
- from 0, < 1:2.3.13+dfsg1-2+deb11u4
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.3 | CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N |