| CVE-2020-8794 | Date: (C)2020-02-26 (M)2023-12-22 |
OpenSMTPD before 6.6.4 allows remote code execution because of an out-of-bounds read in mta_io in mta_session.c for multi-line replies. Although this vulnerability affects the client side of OpenSMTPD, it is possible to attack a server because the server code launches the client code during bounce handling.
CVSS Score and Metrics +CVSS Score and Metrics -| CVSS V3 Severity: | CVSS V2 Severity: |
| CVSS Score : 9.8 | CVSS Score : 10.0 |
| Exploit Score: 3.9 | Exploit Score: 10.0 |
| Impact Score: 5.9 | Impact Score: 10.0 |
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| CVSS V3 Metrics: | CVSS V2 Metrics: |
| Attack Vector: NETWORK | Access Vector: NETWORK |
| Attack Complexity: LOW | Access Complexity: LOW |
| Privileges Required: NONE | Authentication: NONE |
| User Interaction: NONE | Confidentiality: COMPLETE |
| Scope: UNCHANGED | Integrity: COMPLETE |
| Confidentiality: HIGH | Availability: COMPLETE |
| Integrity: HIGH | |
| Availability: HIGH | |
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