CVE-2026-73570

Katalog CVE

CVSS 8.9 · High KEV · sudah dieksploitasi EPSS 71,7%

Kerentanan Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') pada synacor zimbra collaboration suite. Skor CVSS 3.1 8.9 (High) menurut mitre.org. Masuk katalog KEV CISA pada 21 Agustus 2026, artinya sudah terbukti dieksploitasi.

Deskripsi (NVD)

A remote code execution vulnerability exists in Zimbra Collaboration (ZCS) before 10.1.20 when the optional zimbra-snmp package is installed and SNMP notifications are enabled. Due to improper sanitization of untrusted input during SNMP notification processing, an unauthenticated attacker can send specially crafted SMTP requests that may result in execution of arbitrary operating system commands as the Zimbra user.

Advisory KUTIM-CSIRT

• Ratusan Mail Server Zimbra Dikompromikan Lewat Celah SNMP yang Belum Ditambal 26 Agt 2026
• Peringatan Keamanan: Kerentanan CVE-2026-73570 OS Command Injection pada Zimbra Collaboration 22 Agt 2026

Rincian

Terbit di NVD

13 Agustus 2026

Terakhir diubah

24 Agustus 2026

Status NVD

Analyzed

CVSS 3.1

8.9 (High), sumber mitre.org
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:L · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

EPSS (30 hari)

71,7% peluang dieksploitasi; lebih tinggi dari 99,4% CVE lain

Known Exploited Vulnerabilities (CISA)

Nama

Zimbra Collaboration Suite (ZCS) OS Command Injection Vulnerability

Masuk KEV

21 Agustus 2026

Tenggat CISA

24 Agustus 2026 (untuk instansi federal AS)

Ransomware

Belum tercatat

Tindakan wajib

Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories advisory vendor
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-73570 pemerintah AS
• https://moje.cert.pl/komunikaty/2026/145/aktywnie-wykorzystywana-podatnosc-w-zimbra-collaboration-suite/ advisory pihak ketiga
• https://wiki.zimbra.com/wiki/Security_Center release notes