What is CVE-2025-62763?

CVE-2025-62763 is a medium-severity vulnerability in Zimbra Collaboration, classified under Server-Side Request Forgery (SSRF). CVSS score: 5.0/10. Published 2025-10-21.

How severe is CVE-2025-62763?

Medium severity. CVSS v3 base score is 5.0 out of 10.

SSRF in Zimbra Collaboration

CVE-2025-62763

Zimbra Collaboration (ZCS) before 10.1.12 allows SSRF because of the configuration of the chat proxy.

Vulnerability class: SSRF (Server-Side Request Forgery)

EPSS: 0.000 (15.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.0 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:N.

Affected products

Zimbra Collaboration — versions 0

Weakness classification (CWE)

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

References

wiki.zimbra.com/wiki/Zimbra_Security_Advisories
wiki.zimbra.com/wiki/Security_Center
wiki.zimbra.com/wiki/Zimbra_Releases/10.1.12
blog.zimbra.com/2025/10/patch-release-update-zimbra-10-1-12/
wiki.zimbra.com/wiki/Zimbra_Releases/10.1.12

Frequently asked questions

What is CVE-2025-62763?: CVE-2025-62763 is a medium-severity vulnerability in Zimbra Collaboration, classified under Server-Side Request Forgery (SSRF). CVSS score: 5.0/10. Published 2025-10-21.
How severe is CVE-2025-62763?: Medium severity. CVSS v3 base score is 5.0 out of 10.