Vendor
Zimbra vulnerabilities
Updated . Rebuilt every hour.
Junglewise Threat Intelligence has tracked 21 vulnerabilities in Zimbra: 4 in the last 7 days and 5 in the last 90 days, 6 of them critical and 1 exploited in the wild. The most recent, CVE-2026-93647, was published on 25 September 2026. 1 technology has a page of its own.
- Last 7 days
- 4
- Last 90 days
- 5
- Critical, all time
- 6
- Exploited in the wild
- 1
About Zimbra
A software company that develops collaboration and email server solutions.
Zimbra technologies
Latest Zimbra vulnerabilities
- CVE-2026-93647: Zimbra Collaboration stored XSS in calendar COUNTER message From addresscriticalCVSS 9.3
- CVE-2026-93643: Zimbra OnlyOffice path traversal and code executioncriticalCVSS 9.8
- CVE-2026-93642: Zimbra Collaboration stored XSS in share notificationscriticalCVSS 9.3
- CVE-2026-93641: Zimbra Collaboration stored XSS in share notificationscriticalCVSS 9.3
- CVE-2026-73570: Zimbra Collaboration Suite OS command injection in SMTPcriticalexploited in the wildCVSS 9.8EPSS 11.7%
- CVE-2016-4019: Zimbra Collaboration Suite integrity vulnerability via unknown vectorshighCVSS 7.5
- CVE-2016-3999: Zimbra Collaboration multiple XSS vulnerabilitiesmediumCVSS 6.1
- CVE-2016-3415: Zimbra Collaboration deserialization attack via unspecified vectorscriticalCVSS 9.1
- CVE-2016-3414: Zimbra Collaboration denial of service in mailboxdmediumCVSS 6.5
- CVE-2016-3413: Zimbra Collaboration integrity vulnerability via unknown vectorshighCVSS 7.5
- CVE-2016-3412: Zimbra Collaboration Multiple XSS VulnerabilitiesmediumCVSS 6.1
- CVE-2016-3411: Zimbra Collaboration XSS in changepass componentmediumCVSS 6.1
- CVE-2016-3410: Zimbra Collaboration multiple XSS vulnerabilitiesmediumCVSS 6.1
- CVE-2016-3409: Zimbra Collaboration XSS in unspecified componentsmediumCVSS 6.1
- CVE-2016-3408: Zimbra Collaboration XSS in unspecified componentmediumCVSS 6.1
- CVE-2016-3407: Zimbra Collaboration multiple XSS vulnerabilitiesmediumCVSS 6.1
- CVE-2016-3406: Zimbra Collaboration CSRF in Client uploader and REST handlershighCVSS 8.8
- CVE-2016-3405: Zimbra Collaboration multiple unspecified vulnerabilitieshighCVSS 7.5
- CVE-2016-3404: Zimbra Collaboration integrity vulnerability via unknown vectorshighCVSS 7.5
- CVE-2016-3402: Zimbra Collaboration unspecified confidentiality vulnerabilityhighCVSS 7.5
- CVE-2016-3401: Zimbra Collaboration integrity vulnerability via unknown vectorsmediumCVSS 6.5
Most severe Zimbra vulnerabilities
Exploited in the wild first, then by severity and CVSS score.
- CVE-2026-73570: Zimbra Collaboration Suite OS command injection in SMTPcriticalexploited in the wildCVSS 9.8EPSS 11.7%
- CVE-2026-93643: Zimbra OnlyOffice path traversal and code executioncriticalCVSS 9.8
- CVE-2026-93647: Zimbra Collaboration stored XSS in calendar COUNTER message From addresscriticalCVSS 9.3
- CVE-2026-93642: Zimbra Collaboration stored XSS in share notificationscriticalCVSS 9.3
- CVE-2026-93641: Zimbra Collaboration stored XSS in share notificationscriticalCVSS 9.3
- CVE-2016-3415: Zimbra Collaboration deserialization attack via unspecified vectorscriticalCVSS 9.1
- CVE-2016-3406: Zimbra Collaboration CSRF in Client uploader and REST handlershighCVSS 8.8
- CVE-2016-4019: Zimbra Collaboration Suite integrity vulnerability via unknown vectorshighCVSS 7.5
- CVE-2016-3413: Zimbra Collaboration integrity vulnerability via unknown vectorshighCVSS 7.5
- CVE-2016-3405: Zimbra Collaboration multiple unspecified vulnerabilitieshighCVSS 7.5
Vulnerabilities per week
The last 13 weeks, by the week each vulnerability was published.
| Week of | Bar | Vulns | Critical |
|---|---|---|---|
| 29 Jun 2026 | 0 | 0 | |
| 6 Jul 2026 | 0 | 0 | |
| 13 Jul 2026 | 0 | 0 | |
| 20 Jul 2026 | 0 | 0 | |
| 27 Jul 2026 | 0 | 0 | |
| 3 Aug 2026 | 0 | 0 | |
| 10 Aug 2026 | 0 | 0 | |
| 17 Aug 2026 | 1 | 1 | |
| 24 Aug 2026 | 0 | 0 | |
| 31 Aug 2026 | 0 | 0 | |
| 7 Sep 2026 | 0 | 0 | |
| 14 Sep 2026 | 0 | 0 | |
| 21 Sep 2026 | 4 | 4 |
How this is built
Junglewise Threat Intelligence collects vulnerabilities from NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories, and matches each one to the technologies and vendors it affects. Dates are the date a vulnerability was published, in UTC.
The pages are rebuilt from the database every hour. Frozen weekly and monthly reports never change once published, so they can be cited.
Use this data
The same data is at https://junglewise.ai/threats/vendors/zimbra.json, for scripts and language models. It is free to reuse under CC BY 4.0 with a link back to this page.
Cite as: Junglewise Threat Intelligence, "Zimbra vulnerabilities", https://junglewise.ai/threats/vendors/zimbra, 26 September 2026.