CVE-2020-7796

CRITICALNVD 9.89.8—Trending — 4 sources updated this weekExploited in the wild

9.8

Zimbra Collaboration Suite (ZCS) before 8.8.15 Patch 7 allows SSRF when WebEx zimlet is installed and zimlet JSP is enabled.

CVSS v3: 9.8
EG Score: 9.8(high)
EPSS: 99.8%
KEV: ⚠ Exploited

Published

February 18, 2020

Last Modified

February 18, 2026

Advisory Details (2)

Auto-updated Jun 1, 2026

⚠️ Active exploitation confirmed. Patch available. Sources: cisa.

cisa Patch Available🔴 Active Exploitation

Known Exploited Vulnerabilities Catalog | CISA

Known Exploited Vulnerabilities Catalog | CISA. Listed in CISA Known Exploited Vulnerabilities catalog.

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-7796

generic Patch Available

Zimbra Releases/8.8.15/P7 - Zimbra :: Tech Center

https://wiki.zimbra.com/wiki/Zimbra_Releases/8.8.15/P7

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-918Server-Side Request Forgery (SSRF)

Data Freshness Timeline

(refreshed 20× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-04 03:00 UTCEG score recompute
2026-06-04 03:00 UTCGHSA enrichment
2026-06-03 23:05 UTCEG score recompute
2026-06-03 23:05 UTCGHSA enrichment
2026-06-03 19:10 UTCEG score recompute
2026-06-03 19:10 UTCGHSA enrichment
2026-06-03 19:09 UTCkev_newly_listed
2026-06-03 15:15 UTCEG score recompute
2026-06-03 15:14 UTCGHSA enrichment
2026-06-03 11:18 UTCEG score recompute
2026-06-03 11:18 UTCGHSA enrichment
2026-06-03 07:22 UTCEG score recompute
2026-06-03 07:22 UTCGHSA enrichment
2026-06-03 03:27 UTCEG score recompute
2026-06-03 03:27 UTCGHSA enrichment
2026-06-02 23:32 UTCEG score recompute
2026-06-02 23:32 UTCGHSA enrichment
2026-06-02 19:36 UTCEG score recompute
2026-06-02 19:36 UTCGHSA enrichment
2026-06-02 18:32 UTCkev_newly_listed

Publicly available exploits

(1 reference)

Working exploit code is in the public domain. Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

Nucleihttp/cves/2020/CVE-2020-7796.yaml
First seen Jan 1, 2020
Zimbra Collaboration Suite < 8.8.15 Patch 7 - Server-Side Request Forgery
Open source ↗

Frequently asked(6)

What is CVE-2020-7796?

CVE-2020-7796 is a critical vulnerability published on February 18, 2020. Zimbra Collaboration Suite (ZCS) before 8.8.15 Patch 7 allows SSRF when WebEx zimlet is installed and zimlet JSP is enabled.

When was CVE-2020-7796 disclosed?

CVE-2020-7796 was first published in the National Vulnerability Database on February 18, 2020, with the most recent update on February 18, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2020-7796 actively exploited?

Yes. CISA added CVE-2020-7796 to the Known Exploited Vulnerabilities catalog on February 17, 2026, affecting Synacor Zimbra Collaboration Suite. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.

What is the CVSS score of CVE-2020-7796?

CVE-2020-7796 has a CVSS v3 base score of 9.8 (NVD).

Which products are affected by CVE-2020-7796?

CVE-2020-7796 affects Synacor Zimbra Collaboration Suite. The full affected-products list, including version ranges and fixed versions, is shown in the Affected Packages section of this page.

How do I remediate CVE-2020-7796?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2020-7796, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2020-7796

📅 Published

🔄 Last Modified

📋 Advisory Details (2)