Reference page — cumulative record through Monday, October 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
Zimbra
Vendor reference — Zimbra · sector: Other. Cumulative disclosure record across the archive.
Career totals
| All-time | YTD | |
|---|---|---|
| CVEs | 17 | 17 |
| KEV entries | 2 | 2 |
| KEV/100 | Med CVSS | Med EPSS | C | H | M | L |
|---|---|---|---|---|---|---|
| 11.8 | 6.5 | .0027 | 4 | 2 | 9 | 2 |
KEV/100 = KEV entries ÷ CVEs × 100. Med CVSS / Med EPSS are medians over all disclosures. C/H/M/L = disclosures by CVSS severity band.
Monthly disclosures
Trend (by first-seen month, full archive): ▂▁▁▁▁▁▁█▅▆
| Month | New CVEs |
|---|---|
| 2026-01 | 1 |
| 2026-02 | 0 |
| 2026-03 | 0 |
| 2026-04 | 0 |
| 2026-05 | 0 |
| 2026-06 | 0 |
| 2026-07 | 0 |
| 2026-08 | 7 |
| 2026-09 | 4 |
| 2026-10 | 5 |
Notable CVEs
Ranked by the published formula: KEV → EPSS → CVSS → CVE ID.
| CVE | CVSS | EPSS %ile | Severity | KEV | First seen |
|---|---|---|---|---|---|
| CVE-2026-73570 | 8.9 | 99.4 | HIGH | YES | 2026-08-13 |
| CVE-2025-66376 | 6.1 | 97.4 | MEDIUM | YES | 2026-01-05 |
| CVE-2026-93643 | 9.8 | 60.8 | CRITICAL | — | 2026-09-25 |
| CVE-2026-73573 | 6.5 | 37.7 | MEDIUM | — | 2026-08-13 |
| CVE-2026-73576 | 6.5 | 24.9 | MEDIUM | — | 2026-08-13 |
| CVE-2026-73574 | 6.5 | 24.2 | MEDIUM | — | 2026-08-13 |
| CVE-2026-93637 | 3.7 | 20.6 | LOW | — | 2026-10-14 |
| CVE-2026-50055 | 6.5 | 18.5 | MEDIUM | — | 2026-10-08 |
| CVE-2026-93641 | 9.3 | 18.4 | CRITICAL | — | 2026-09-25 |
| CVE-2026-73572 | 6.1 | 16.9 | MEDIUM | — | 2026-08-13 |
| CVE-2026-73571 | 4.3 | 16.3 | MEDIUM | — | 2026-08-13 |
| CVE-2026-93642 | 9.3 | 12.7 | CRITICAL | — | 2026-09-25 |
| CVE-2026-93647 | 9.3 | 12.7 | CRITICAL | — | 2026-09-25 |
| CVE-2026-93635 | 5.3 | 11.5 | MEDIUM | — | 2026-10-14 |
| CVE-2026-10631 | 6.5 | 10.9 | MEDIUM | — | 2026-10-08 |
Recent CVEs
| CVE | CVSS | EPSS %ile | Severity | KEV | First seen |
|---|---|---|---|---|---|
| CVE-2026-93637 | 3.7 | 20.6 | LOW | — | 2026-10-14 |
| CVE-2026-93635 | 5.3 | 11.5 | MEDIUM | — | 2026-10-14 |
| CVE-2026-50055 | 6.5 | 18.5 | MEDIUM | — | 2026-10-08 |
| CVE-2026-10631 | 6.5 | 10.9 | MEDIUM | — | 2026-10-08 |
| CVE-2026-50054 | 7.1 | 6.1 | HIGH | — | 2026-10-08 |
| CVE-2026-93647 | 9.3 | 12.7 | CRITICAL | — | 2026-09-25 |
| CVE-2026-93643 | 9.8 | 60.8 | CRITICAL | — | 2026-09-25 |
| CVE-2026-93642 | 9.3 | 12.7 | CRITICAL | — | 2026-09-25 |
| CVE-2026-93641 | 9.3 | 18.4 | CRITICAL | — | 2026-09-25 |
| CVE-2026-73570 | 8.9 | 99.4 | HIGH | YES | 2026-08-13 |
| CVE-2026-73576 | 6.5 | 24.9 | MEDIUM | — | 2026-08-13 |
| CVE-2026-73575 | 3.5 | 4.1 | LOW | — | 2026-08-13 |
| CVE-2026-73574 | 6.5 | 24.2 | MEDIUM | — | 2026-08-13 |
| CVE-2026-73573 | 6.5 | 37.7 | MEDIUM | — | 2026-08-13 |
| CVE-2026-73572 | 6.1 | 16.9 | MEDIUM | — | 2026-08-13 |
Products
This vendor's products with a reference page (≥2 disclosures), by CVE count. A monolithic vendor total dilutes signal; product pages sharpen it.
| Product | CVEs | KEV |
|---|---|---|
| Collaboration | 8 | 2 |
| Zimbra Collaboration Suite | 5 | 0 |
| Zimbra Collaboration Suite (ZCS) | 4 | 0 |
KEV entries
| CVE | KEV added | CVSS | EPSS %ile | Severity |
|---|---|---|---|---|
| CVE-2026-73570 | 2026-08-21 | 8.9 | 99.4 | HIGH |
| CVE-2025-66376 | 2026-03-18 | 6.1 | 97.4 | MEDIUM |
KEV timing
| CVE | Days |
|---|---|
| CVE-2026-73570 | 8 |
| CVE-2025-66376 | 72 |
| CVE | Due | Days over |
|---|---|---|
| CVE-2025-66376 | 2026-04-01 | 201 |
| CVE-2026-73570 | 2026-08-24 | 56 |
Methodology
Rate statistics are arithmetic over published figures: KEV/100 = KEV entries ÷ CVEs × 100; medians are taken over this vendor's disclosures. Vendor names are normalized (case, punctuation, common aliases) before aggregation; monthly counts are keyed to first-seen day, the day this archive first observed the record, not the upstream publication date.
Raw counts are not comparable across vendors: disclosure practices, product breadth, and CNA conventions differ widely, so a larger number here does not mean less secure software. This is a reference page assembled from the public record — not a record of its own, and not a ranking of vendors by our judgment.
Sources. CVE records from the CVE Program (cvelistV5); enrichment from NVD (NIST); known-exploited status from the CISA KEV catalog; exploit probability from FIRST EPSS.
