CVE-2026-33603

Katalog CVE

CVSS 5.3 · Medium EPSS 0,23%

Kerentanan Improper Control of Resource Identifiers ('Resource Injection') pada dovecot, open-xchange dovecot. Skor CVSS 3.1 5.3 (Medium) menurut NVD.

Deskripsi (NVD)

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.

Rincian

Terbit di NVD

12 Mei 2026

Terakhir diubah

17 Juni 2026

Status NVD

Analyzed

CVSS 3.1

5.3 (Medium), sumber NVD
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-99: Improper Control of Resource Identifiers ('Resource Injection')

EPSS (30 hari)

0,23% peluang dieksploitasi; lebih tinggi dari 13,1% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://documentation.open-xchange.com/dovecot/security/advisories/csaf/2026/oxdc-adv-2026-0002.json advisory vendor