CVE-2017-6821
9.8
CRITICAL · CVSS 3.0 · EPSS 3.8% (pctl 90)
In your normal cycle
Critical by CVSS (9.8), but no sign of active exploitation.
Description
Directory traversal vulnerability in Zimbra Collaboration Suite (aka ZCS) before 8.7.6 allows attackers to have unspecified impact via unknown vectors.
Scoring
| CVSS | 9.8 (CRITICAL, v3.0) |
|---|---|
| Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 3.83% — more likely to be exploited than 90% of all CVEs |
| Weakness | CWE-22 |
| On CISA KEV | no |
| Public exploit | none known |
| Published | 2017-05-23 |
| Last modified | 2026-06-17 |
Affected (1)
| Vendor | Product |
|---|---|
| synacor | zimbra collaboration suite |
References
→ the Explorer · watch your stack · NVD