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CVE-2018-6789: Exim Buffer Overflow Vulnerability
Exim Exim · in CISA KEV since 2021-11-03
2021-11-03added to KEV
2022-05-03federal remediation due date
82.14%EPSS exploit probability (30 days) 99.6th percentile
9.8 CRITICALCVSS 3.1
Knownknown ransomware use
1,364days from NVD publication to KEV
What it is
Exim contains a buffer overflow vulnerability in the base64d function part of the SMTP listener that may allow for remote code execution.
Required action (CISA)
Apply updates per vendor instructions.
| CWE | CWE-119 |
|---|---|
| CVSS vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD published | 2018-02-08 (Analyzed) |
Original records: NVD · CISA KEV · JSON: /api/cve/CVE-2018-6789.json · all KEV CVEs
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Get the full file: Exploited Vulnerabilities Brief – September 2026 ($29): this month's KEV additions ranked by EPSS, ransomware use and due date, ready to hand to a patch team. Checkout by Polar.