mailboxd component in Synacor Zimbra Collaboration Suite 8.7.x before 8.7.11p10 has an…
Priority CRITICAL 100Exploited in the wildCWE-611Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.
Summary
mailboxd component in Synacor Zimbra Collaboration Suite 8.7.x before 8.7.11p10 has an XML External Entity injection (XXE) vulnerability, as demonstrated by Autodiscover/Autodiscover.xml.
Why it matters now
Exploitation Active In CISA KEV since 2022-01-10CISA due date 2022-07-10
EPSS 0.99986 99th percentileScored 2026-11-07
Public exploit Yes 3 exploit referencesTagged by NVD and the CNA
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Active
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 11
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:synacor:zimbra_collaboration_suite:*:*:*:*:*:*:*:* | 8.7.0 to before 8.7.11 | Vulnerable | Synacor |
| cpe:2.3:a:synacor:zimbra_collaboration_suite:8.7.11:-:*:*:*:*:*:* | 8.7.11 | Vulnerable | Synacor |
| cpe:2.3:a:synacor:zimbra_collaboration_suite:8.7.11:p1:*:*:*:*:*:* | 8.7.11 p1 | Vulnerable | Synacor |
| cpe:2.3:a:synacor:zimbra_collaboration_suite:8.7.11:p2:*:*:*:*:*:* | 8.7.11 p2 | Vulnerable | Synacor |
| cpe:2.3:a:synacor:zimbra_collaboration_suite:8.7.11:p3:*:*:*:*:*:* | 8.7.11 p3 | Vulnerable | Synacor |
| cpe:2.3:a:synacor:zimbra_collaboration_suite:8.7.11:p4:*:*:*:*:*:* | 8.7.11 p4 | Vulnerable | Synacor |
| cpe:2.3:a:synacor:zimbra_collaboration_suite:8.7.11:p5:*:*:*:*:*:* | 8.7.11 p5 | Vulnerable | Synacor |
| cpe:2.3:a:synacor:zimbra_collaboration_suite:8.7.11:p6:*:*:*:*:*:* | 8.7.11 p6 | Vulnerable | Synacor |
| cpe:2.3:a:synacor:zimbra_collaboration_suite:8.7.11:p7:*:*:*:*:*:* | 8.7.11 p7 | Vulnerable | Synacor |
| cpe:2.3:a:synacor:zimbra_collaboration_suite:8.7.11:p8:*:*:*:*:*:* | 8.7.11 p8 | Vulnerable | Synacor |
- cpe:2.3:a:synacor:zimbra_collaboration_suite:*:*:*:*:*:*:*:* Versions 8.7.0 to before 8.7.11 Vulnerable ·Synacor
- cpe:2.3:a:synacor:zimbra_collaboration_suite:8.7.11:-:*:*:*:*:*:* Versions 8.7.11 Vulnerable ·Synacor
- cpe:2.3:a:synacor:zimbra_collaboration_suite:8.7.11:p1:*:*:*:*:*:* Versions 8.7.11 p1 Vulnerable ·Synacor
- cpe:2.3:a:synacor:zimbra_collaboration_suite:8.7.11:p2:*:*:*:*:*:* Versions 8.7.11 p2 Vulnerable ·Synacor
- cpe:2.3:a:synacor:zimbra_collaboration_suite:8.7.11:p3:*:*:*:*:*:* Versions 8.7.11 p3 Vulnerable ·Synacor
- cpe:2.3:a:synacor:zimbra_collaboration_suite:8.7.11:p4:*:*:*:*:*:* Versions 8.7.11 p4 Vulnerable ·Synacor
- cpe:2.3:a:synacor:zimbra_collaboration_suite:8.7.11:p5:*:*:*:*:*:* Versions 8.7.11 p5 Vulnerable ·Synacor
- cpe:2.3:a:synacor:zimbra_collaboration_suite:8.7.11:p6:*:*:*:*:*:* Versions 8.7.11 p6 Vulnerable ·Synacor
- cpe:2.3:a:synacor:zimbra_collaboration_suite:8.7.11:p7:*:*:*:*:*:* Versions 8.7.11 p7 Vulnerable ·Synacor
- cpe:2.3:a:synacor:zimbra_collaboration_suite:8.7.11:p8:*:*:*:*:*:* Versions 8.7.11 p8 Vulnerable ·Synacor
Remediation
No fixed version listed by the sources yet.
Timeline
- 2022-01-10 Added to CISA KEV
- 2026-10-02 Threatist record created from CVE-2019-9670
- 2026-10-03 Alias added: GHSA-pj74-pf28-5qjw
References
Exploit 3
More Synacor Zimbra Collaboration Suite vulnerabilities
- TI-2024-30554 The postjournal service in Zimbra Collaboration (ZCS) before 8.8.15 Patch 46, 9 before… KEVCVSS 3.1CRITICAL 10.0
- TI-2022-19841 An issue was discovered in Zimbra Collaboration (ZCS) 8.8.15 and 9.0. KEVCVSS 3.1CRITICAL 9.8
- TI-2022-17239 Zimbra Collaboration Suite (ZCS) 8.8.15 and 9.0 has mboximport functionality that… KEVCVSS 3.1CRITICAL 9.8
- TI-2022-10792 Zimbra Collaboration (aka ZCS) 8.8.15 and 9.0 allows an unauthenticated attacker to… KEVCVSS 3.1CRITICAL 9.8
- TI-2020-06312 Zimbra Collaboration Suite (ZCS) before 8.8.15 Patch 7 allows SSRF when WebEx zimlet is… KEVCVSS 3.1CRITICAL 9.8
- TI-2026-51660 OS command injection in Zimbra Collaboration KEVCVSS 3.1HIGH 8.9
Sources
- CVE-2019-9670 · CVE Program
- CVE-2019-9670 · NVD
- CISA Known Exploited Vulnerabilities
- FIRST EPSS
- GHSA-pj74-pf28-5qjw · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences