What is CVE-2025-25065?

CVE-2025-25065 is a medium-severity vulnerability in Synacor Zimbra Collaboration Suite, classified under Server-Side Request Forgery (SSRF). CVSS score: 5.3/10. Published 2025-02-03.

How severe is CVE-2025-25065?

Medium severity. CVSS v3 base score is 5.3 out of 10.

SSRF in Synacor Zimbra Collaboration Suite

CVE-2025-25065

SSRF vulnerability in the RSS feed parser in Zimbra Collaboration 9.0.0 before Patch 43, 10.0.x before 10.0.12, and 10.1.x before 10.1.4 allows unauthorized redirection to internal network endpoints.

Vulnerability class: SSRF (Server-Side Request Forgery)

Published 2025-02-03 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.006 (45.9th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 46th percentile — 45.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000

Affected products

Synacor Zimbra Collaboration Suite — versions 9.0.0

Weakness classification (CWE)

CWE-918 — Server-Side Request Forgery (SSRF)

References

wiki.zimbra.com/wiki/Zimbra_Security_Advisories (Vendor Advisory)
wiki.zimbra.com/wiki/Zimbra_Releases/10.1.4 (Release Notes)
wiki.zimbra.com/wiki/Zimbra_Releases/10.0.12 (Release Notes)
wiki.zimbra.com/wiki/Zimbra_Releases/9.0.0/P43 (Release Notes)

Frequently asked questions

What is CVE-2025-25065?: CVE-2025-25065 is a medium-severity vulnerability in Synacor Zimbra Collaboration Suite, classified under Server-Side Request Forgery (SSRF). CVSS score: 5.3/10. Published 2025-02-03.
How severe is CVE-2025-25065?: Medium severity. CVSS v3 base score is 5.3 out of 10.