Field Assessment
AI analysis pending.
Exhibit — Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
External Security References
Note: these links are listed for security research and verification purposes only.
Cross-Reference — CISA KEV
Status: This CVE is listed in CISA's Known Exploited Vulnerabilities catalog.
Ransomware use: Known
Added to KEV: 2021-11-03
Required action: Apply updates per vendor instructions.
CVE
CVE-2018-6789
Severity
CRITICAL
CVSS
9.8
EPSS
81.72%
Original Filing — NVD Description
An issue was discovered in the base64d function in the SMTP listener in Exim before 4.90.1. By sending a handcrafted message, a buffer overflow may happen. This can be used to execute code remotely.