Reference page — cumulative record through Sunday, October 4, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
CVE-2026-73575
Zimbra Collaboration — In Zimbra Collaboration (ZCS) before 10.1.17, a Cross-Site Request Forgery (CSRF) vulnerability exists in the Exchange Web Services (EWS)…
AV AC PR UI S C I A CVSS EPSS %ile KEV
N L L R U N L N 3.5 .0015 3.9 —
AFFECTED
Product Versions Fixed
Collaboration unspecified —
TIMELINE
Aug 12 Reserved by mitre
Aug 13 Published (CNA: mitre)
Aug 28 RESCORED — CVE-2026-73575 (Zimbra Collaboration). CVSS 3.1 → 3.5 (NVD).
Description
In Zimbra Collaboration (ZCS) before 10.1.17, a Cross-Site Request Forgery (CSRF) vulnerability exists in the Exchange Web Services (EWS) endpoint of Zimbra Collaboration (ZCS) due to insufficient validation of request content types. An attacker can exploit this vulnerability by causing an authenticated user to submit a crafted request, potentially allowing unauthorized actions to be performed on behalf of the victim.
Lifecycle
Complete event history — 3 events, chronological
| Date | Event | Detail |
|---|
| August 12, 2026 | Reserved | Reserved by mitre |
| August 13, 2026 | Published | Published (CNA: mitre) |
| August 28, 2026 | RESCORED | RESCORED — CVE-2026-73575 (Zimbra Collaboration). CVSS 3.1 → 3.5 (NVD). |
Affected
Affected products and packages — 1 row
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
|---|
| Zimbra | Collaboration | — | — | — |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-73575 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Sunday, October 4, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.
