CVE-2021-40126

Katalog CVE

CVSS 4.3 · Medium EPSS 0,87%

Kerentanan Self-generated Error Message Containing Sensitive Information pada cisco umbrella. Skor CVSS 3.1 4.3 (Medium) menurut NVD.

Deskripsi (NVD)

A vulnerability in the web-based dashboard of Cisco Umbrella could allow an authenticated, remote attacker to perform an email enumeration attack against the Umbrella infrastructure. This vulnerability is due to an overly descriptive error message on the dashboard that appears when a user attempts to modify their email address when the new address already exists in the system. An attacker could exploit this vulnerability by attempting to modify the user's email address. A successful exploit could allow the attacker to enumerate email addresses of users in the system.

Rincian

Terbit di NVD

4 November 2021

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-210: Self-generated Error Message Containing Sensitive Information
CWE-209: Generation of Error Message Containing Sensitive Information

EPSS (30 hari)

0,87% peluang dieksploitasi; lebih tinggi dari 57,8% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-umbrella-user-enum-S7XfJwDE advisory vendor