CVE-2026-20354

Katalog CVE

CVSS 5.9 · Medium EPSS 0,16%

Kerentanan Improper Validation of Integrity Check Value. Skor CVSS 3.1 5.9 (Medium) menurut cisco.com.

Deskripsi (NVD)

Multiple vulnerabilities in the Secure/Multipurpose Internet Mail Extensions (S/MIME) decryption functionality of Cisco Secure Email could allow an unauthenticated, remote attacker to recover plain text from encrypted email messages. These vulnerabilities are due to insufficient validation of message integrity. An attacker could exploit these vulnerabilities by using a machine-in-the-middle technique to intercept and modify traffic between email gateways. A successful exploit could allow the attacker to obtain plaintext content from the encrypted communication.

Rincian

Terbit di NVD

2 September 2026

Terakhir diubah

2 September 2026

Status NVD

Awaiting Analysis

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-354: Improper Validation of Integrity Check Value

EPSS (30 hari)

0,16% peluang dieksploitasi; lebih tinggi dari 4,7% CVE lain

Produk dan versi terdampak

NVD belum mencantumkan data produk (CPE) untuk CVE ini. Produk yang terdampak biasanya disebut di deskripsi dan di advisory vendor pada daftar referensi.

Referensi dan perbaikan

• https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-esa-smime-disc-dzw4rEdY