CVE-2026-43964
CVSS Score
3.7
EPSS Score
0.0%
EPSS Percentile
0th
Postfix before 3.8.16, 3.9 before 3.9.10, and 3.10 before 3.10.9 sometimes allows a buffer over-read and process crash via an enhanced status code that lacks text after the third number.
| CWE | CWE-193 |
| Vendor | postfix |
| Product | postfix |
| Published | May 4, 2026 |
| Last Updated | May 4, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low
Affected Versions
Postfix / Postfix
2.3 < 3.8.16 3.9 < 3.9.10 3.10 < 3.10.9