CVEvulnerability

CVE-2019-9621

7.5 HIGH Known exploited Published 2019-04-30 Modified 2026-06-17 Official page ↗

CISA Known Exploited Vulnerability

Synacor Zimbra Collaboration Suite (ZCS) Server-Side Request Forgery (SSRF) Vulnerability — Synacor Zimbra Collaboration Suite (ZCS)

Synacor Zimbra Collaboration Suite (ZCS) contains a server-side request forgery (SSRF) vulnerability via the ProxyServlet component.

Added to KEV: 2025-07-07
Remediation due: 2025-07-28
Ransomware use: Unknown
Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Notes: https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories ; https://wiki.zimbra.com/wiki/Security_Center ; https://nvd.nist.gov/vuln/detail/CVE-2019-9621

Status: Analyzed
Published: 2019-04-30
Last modified: 2026-06-17
Assigner: [email protected]
CVSS 3.1 ([email protected]): 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0): 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS 2.0 ([email protected]): 5.0 MEDIUM — AV:N/AC:L/Au:N/C:P/I:N/A:N
Weaknesses: CWE-918

Description

Zimbra Collaboration Suite before 8.6 patch 13, 8.7.x before 8.7.11 patch 10, and 8.8.x before 8.8.10 patch 7 or 8.8.x before 8.8.11 patch 3 allows SSRF via the ProxyServlet component.

Affected configurations

• synacor zimbra collaboration suite (< 8.6.0) • synacor zimbra collaboration suite (>= 8.7.0 < 8.7.11) • synacor zimbra collaboration suite (>= 8.8.0 < 8.8.9) • synacor zimbra collaboration suite 8.6.0 • synacor zimbra collaboration suite 8.7.11 • synacor zimbra collaboration suite 8.8.9 • synacor zimbra collaboration suite 8.8.10 • synacor zimbra collaboration suite 8.8.11

Weakness · CWE (1)

CWE-918 Server-Side Request Forgery weakness

References