CVE-2019-9621
Confirmed PUBLISHEDZimbra 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...
1 day faster than CISA KEV
Recommended Action
Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.
At a Glance
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.
- CVE Published
- Apr 30, 2019
- Exploitation Reported
- Jun 01, 2026
- CVSS
- 7.5 High
- EPSS
- 80.9%
Affected Versions
| Vendor | Product | Version | Status |
|---|---|---|---|
| n/a |
n/a
|
n/a |
Affected |
CVE References
- 46693 exploit-db.com · Exploit https://www.exploit-db.com/exploits/46693/
- wiki.zimbra.com/wiki/Zimbra_Security_Advisories wiki.zimbra.com · CVE Record https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories
- wiki.zimbra.com/wiki/Security_Center wiki.zimbra.com · CVE Record https://wiki.zimbra.com/wiki/Security_Center
- bugzilla.zimbra.com/show_bug.cgi bugzilla.zimbra.com · CVE Record https://bugzilla.zimbra.com/show_bug.cgi?id=109127
- rapid7.com/db/modules/exploit/linux/http/zimbra_xxe_rce rapid7.com · CVE Record http://www.rapid7.com/db/modules/exploit/linux/http/zimbra_xxe_rce
Show 4 more references
- packetstormsecurity.com/files/152487/Zimbra-Collaboration-Autodiscov... packetstormsecurity.com · CVE Record http://packetstormsecurity.com/files/152487/Zimbra-Collaboration-Auto...
- blog.zimbra.com/2019/03/9826 blog.zimbra.com · CVE Record https://blog.zimbra.com/2019/03/9826/
- blog.tint0.com/2019/03/a-saga-of-code-executions-on-zimbra.... blog.tint0.com · CVE Record https://blog.tint0.com/2019/03/a-saga-of-code-executions-on-zimbra.html
- packetstormsecurity.com/files/153190/Zimbra-XML-Injection-Server-Sid... packetstormsecurity.com · CVE Record http://packetstormsecurity.com/files/153190/Zimbra-XML-Injection-Serv...
Recommended Actions
- Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.
- Check enrichment artifacts for scanner coverage and available PoCs before rolling remediation validation.
- Use the Pro API to automate enrichment, telemetry, and workflow delivery for VM, SOC, and CTI pipelines.
Known Exploited Vulnerability Sources
Catalogues that list this CVE as a known exploited vulnerability.
Per-source evidence links for KEV attestations are available through the KEVIntel Pro API.
Learn about Pro API access| Source | Added |
|---|---|
| CVE First | 2026-06-01 10:36 UTC |
| CISA | 2026-06-02 14:07 UTC |
Scanner Artifacts
Nuclei and Metasploit references linked to this CVE.
| Scanner | Reference | Detected |
|---|---|---|
| Nuclei | https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2019/CVE-2019-9621.yaml | Jun 01, 2026 |
| Metasploit | https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/linux/http/zimbra_xxe_rce.rb | Apr 28, 2025 |
Virtual Patch
Compensating WAF rules to help reduce exposure to this CVE. Rule content and deployable vendor exports are available with KEVIntel Enterprise.
KEVIntel does not currently have a virtual patch for this CVE. When available, KEVIntel virtual patches ship as deployable ModSecurity, Cloudflare, and AWS WAF rules.
Enterprise feature. Virtual patch rule content and deployable vendor exports (ModSecurity, Cloudflare, AWS WAF) are available to KEVIntel Enterprise users.
CVSS Scores
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
AV:N/AC:L/Au:N/C:P/I:N/A:N
Exploitation Status
Exploited in the wild
Recorded 2026-06-01 10:36:30 UTC · CVE
Proof of concept available
Recorded 2025-04-28 15:02:12 UTC · Nuclei Templates
Weaknesses (CWE)
-
Server-Side Request Forgery (SSRF)
Scanner Integrations
| Scanner | Reference | Detected |
|---|---|---|
| Nuclei | https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2019/CVE-2019-9621.yaml | Jun 01, 2026 |
| Metasploit | https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/linux/http/zimbra_xxe_rce.rb | Apr 28, 2025 |
Potential Proof of Concepts
These PoCs are unverified and could contain malware. Use at your own risk.
nuclei · Created Unknown
Timeline
Key exploitation, disclosure, scanner coverage, and KEV attestation events for this CVE.
-
14:07 UTC about 2 months ago14:07 UTC · about 2 months ago
Added to CISA KEV
Listed in the CISA Known Exploited Vulnerabilities catalog
-
15:34 UTC about 2 months ago15:34 UTC · about 2 months ago
Nuclei template available
Scanner coverage available
-
10:36 UTC about 2 months ago10:36 UTC · about 2 months ago
Added to KEVIntel KEV Feed
High-confidence, third-party attested exploitation
-
15:02 UTC about 1 year ago15:02 UTC · about 1 year ago
Metasploit module available
Exploit module available
-
15:02 UTC about 1 year ago15:02 UTC · about 1 year ago
Public PoC available
Public proof-of-concept code published
-
17:40 UTC about 7 years ago17:40 UTC · about 7 years ago
CVE published
Vulnerability disclosed publicly
-
00:00 UTC over 7 years ago00:00 UTC · over 7 years ago
CVE ID reserved
Identifier reserved by the CNA
Automate This Intelligence with the Pro API
Confidence scoring, exploit status, sensor telemetry, PoCs, scanner integrations, mentions, and tags are available programmatically for VM, SOC, and CTI workflows.
Pro API Example
GET /api/v2/pro/kevs/CVE-2019-9621
{
"cve_id": "CVE-2019-9621",
"title": "Zimbra Collaboration Suite before 8.6 patch 13, 8.7.x before 8.7.11 patch 10,...",
"affected_vendor": "Zimbra",
"affected_product": "Zimbra Collaboration Suite",
"affected_versions": [
{ "vendor": "...", "product": "...", "status": "affected", "display_label": "..." }
],
"confidence": "Confirmed",
"cvss_score": 7.5,
"epss_score": 0.80906,
"exploit_status": {
"exploited_in_the_wild": true,
"active_exploitation_observed": false
},
"sensor_telemetry": { "...": "Pro API fields" },
"proof_of_concepts": [ "..." ],
"scanner_integrations": [ "..." ]
}