CRITICAL KEV
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
Published May 29, 2019 ·Due Jul 10, 2022
9.8
CRITICALCVSS 3.1
EPSS 99.99%
Description
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.
Affected products
No data.
OR
- ≥ 8.7.0 · < 8.7.11
- 8.7.11
- 8.7.11
- 8.7.11
- 8.7.11
- 8.7.11
- 8.7.11
- 8.7.11
- 8.7.11
- 8.7.11
- 8.7.11
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
9.8 CRITICAL NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact High
Integrity Impact High
Availability Impact High
No CVSS v3.0 score for this CVE.
7.5 HIGH NVD
AV:N/AC:L/Au:N/C:P/I:P/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact Partial
Listed in CISA KEV KEV
Date Added
Jan 10, 2022
Patch Due
Jul 10, 2022
Required Action
Apply updates per vendor instructions.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
ActiveAutomatable
YesTechnical Impact
TotalDecision
n/aAssessed Feb 7, 2025 · SSVC 2.0.3
99.99% 0.99986
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.
EPSS probability 0.99986
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (23 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 99.99% (0.99986) | 99.98th | v5 (v2026.06.15) |
| Jun 15, 2026 | 99.99% (0.99986) | 99.98th | v5 (v2026.06.15) |
| Mar 17, 2025 | 94.43% (0.94430) | 99.98th | v4 (v2025.03.14) |
| Dec 12, 2024 | 97.46% (0.97463) | 99.97th | v3 (v2023.03.01) |
| Jun 9, 2024 | 97.47% (0.97471) | 99.97th | v3 (v2023.03.01) |
| May 22, 2024 | 97.46% (0.97461) | 99.96th | v3 (v2023.03.01) |
| Apr 3, 2024 | 97.49% (0.97492) | 99.97th | v3 (v2023.03.01) |
| Mar 18, 2024 | 97.48% (0.97484) | 99.97th | v3 (v2023.03.01) |
| Feb 27, 2024 | 97.50% (0.97499) | 99.97th | v3 (v2023.03.01) |
| Feb 7, 2024 | 97.51% (0.97510) | 99.98th | v3 (v2023.03.01) |
| Oct 25, 2023 | 97.22% (0.97216) | 99.76th | v3 (v2023.03.01) |
| Sep 22, 2023 | 97.15% (0.97147) | 99.72th | v3 (v2023.03.01) |
| Jul 24, 2023 | 97.51% (0.97513) | 99.97th | v3 (v2023.03.01) |
| Apr 19, 2023 | 97.53% (0.97534) | 99.98th | v3 (v2023.03.01) |
| Mar 7, 2023 | 97.55% (0.97548) | 99.99th | v3 (v2023.03.01) |
| Mar 6, 2023 | 81.11% (0.81114) | 99.53th | v2 (v2022.01.01) |
| Feb 4, 2022 | 81.11% (0.81114) | 99.44th | v2 (v2022.01.01) |
| Feb 3, 2022 | 32.84% (0.32843) | 97.62th | v1 |
| Sep 16, 2021 | 32.84% (0.32843) | 98.72th | v1 |
| Sep 14, 2021 | 6.21% (0.06208) | 89.77th | v1 |
| Sep 1, 2021 | 32.84% (0.32843) | 98.73th | v1 |
| Jun 27, 2021 | 32.84% (0.32843) | 0.00th | v1 |
| Apr 14, 2021 | 29.51% (0.29514) | 0.00th | v1 |
Weaknesses (1)
References (7)
- http://packetstormsecurity.com/files/152487/Zimbra-Collaboration-Autodiscover-Servlet-XXE-ProxyServlet-SSRF.html x_refsource_MISCExploitThird Party AdvisoryVDB Entry
- http://www.rapid7.com/db/modules/exploit/linux/http/zimbra_xxe_rce x_refsource_MISCThird Party Advisory
- https://bugzilla.zimbra.com/show_bug.cgi?id=109129 x_refsource_MISCBroken LinkIssue TrackingPatchThird Party Advisory
- https://isc.sans.edu/forums/diary/CVE20199670+Zimbra+Collaboration+Suite+XXE+vulnerability/27570/ x_refsource_MISCExploitThird Party Advisory
- https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories x_refsource_MISCVendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-9670 government-resourceUS Government Resource
- https://www.exploit-db.com/exploits/46693/ exploitx_refsource_EXPLOIT-DBThird Party AdvisoryVDB Entry
| Link | Providers | Tags |
|---|---|---|
| http://packetstormsecurity.com/files/152487/Zimbra-Collaboration-Autodiscover-Servlet-XXE-ProxyServlet-SSRF.html | x_refsource_MISCExploitThird Party AdvisoryVDB Entry | |
| http://www.rapid7.com/db/modules/exploit/linux/http/zimbra_xxe_rce | x_refsource_MISCThird Party Advisory | |
| https://bugzilla.zimbra.com/show_bug.cgi?id=109129 | x_refsource_MISCBroken LinkIssue TrackingPatchThird Party Advisory | |
| https://isc.sans.edu/forums/diary/CVE20199670+Zimbra+Collaboration+Suite+XXE+vulnerability/27570/ | x_refsource_MISCExploitThird Party Advisory | |
| https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories | x_refsource_MISCVendor Advisory | |
| https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-9670 | government-resourceUS Government Resource | |
| https://www.exploit-db.com/exploits/46693/ | exploitx_refsource_EXPLOIT-DBThird Party AdvisoryVDB Entry |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published May 29, 2019
Updated Oct 21, 2025
Reserved Mar 11, 2019
Link CVE-2019-9670
CISA Vulnrichment
Updated Feb 7, 2025