CVE-2020-7796 KEV
9.8
CRITICAL · CVSS 3.1 · EPSS 84.4% (pctl 100)
Patch first
On CISA KEV — known exploited in the wild, due 2026-03-10.
Description
Zimbra Collaboration Suite (ZCS) before 8.8.15 Patch 7 allows SSRF when WebEx zimlet is installed and zimlet JSP is enabled.
Scoring
| CVSS | 9.8 (CRITICAL, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 84.42% — more likely to be exploited than 100% of all CVEs |
| Weakness | CWE-918 |
| On CISA KEV | yes — remediate by 2026-03-10 |
| Public exploit | none known |
| Published | 2020-02-18 |
| Last modified | 2026-06-17 |
CISA KEV
| Name | Synacor Zimbra Collaboration Suite (ZCS) Server-Side Request Forgery Vulnerability |
|---|---|
| Added | 2026-02-17 |
| Due | 2026-03-10 |
| Vendor / product | Synacor / Zimbra Collaboration Suite |
| Ransomware use | none reported |
Affected (1)
| Vendor | Product |
|---|---|
| synacor | zimbra collaboration suite |
References
→ the Explorer · watch your stack · NVD