CVE-2021-20617
9.8
CRITICAL · CVSS 3.1 · EPSS 7.9% (pctl 95)
In your normal cycle
Critical by CVSS (9.8), but no sign of active exploitation.
Description
Improper access control vulnerability in acmailer ver. 4.0.1 and earlier, and acmailer DB ver. 1.1.3 and earlier allows remote attackers to execute an arbitrary OS command, or gain an administrative privilege which may result in obtaining the sensitive information on the server via unspecified vectors.
Scoring
| CVSS | 9.8 (CRITICAL, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 7.87% — more likely to be exploited than 95% of all CVEs |
| On CISA KEV | no |
| Public exploit | none known |
| Published | 2021-01-14 |
| Last modified | 2026-06-17 |
Affected (2)
| Vendor | Product |
|---|---|
| acmailer | acmailer |
| acmailer | acmailer db |
References
→ the Explorer · watch your stack · NVD