Use-after-free vulnerability in OpenSMTPD before 5.7.2 allows remote attackers to cause a denial of service (crash) or execute arbitrary code via vectors involving req_ca_vrfy_smtp and req_ca_vrfy_mta.
CVSS Details
- CVSS 3.0 Base Score: 9.8
- CVSS 3.0 Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade opensmtpd | Jul 30, 2024 | Oct 16, 2017 |
| Freebsd | — | Upgrade opensmtpd | Dec 10, 2025 | Oct 4, 2015 |
| Ubuntu | — | No solution exists | Jun 26, 2025 | Oct 16, 2017 |
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