CVE-2021-27648
9.0
CRITICAL · CVSS 3.1 · EPSS 2.8% (pctl 86)
In your normal cycle
Critical by CVSS (9), but no sign of active exploitation.
Description
Externally controlled reference to a resource in another sphere in quarantine functionality in Synology Antivirus Essential before 1.4.8-2801 allows remote authenticated users to obtain privilege via unspecified vectors.
Scoring
| CVSS | 9.0 (CRITICAL, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H |
| EPSS | 2.84% — more likely to be exploited than 86% of all CVEs |
| Weakness | CWE-610 |
| On CISA KEV | no |
| Public exploit | none known |
| Published | 2021-04-28 |
| Last modified | 2026-06-17 |
Affected (1)
| Vendor | Product |
|---|---|
| synology | antivirus essential |
References
→ the Explorer · watch your stack · NVD