Risk Letters

Exploited vulnerability

CVE-2018-6789

TLP:CLEAR

Exim Buffer Overflow Vulnerability

Exim contains a buffer overflow vulnerability in the base64d function part of the SMTP listener that may allow for remote code execution.

Facts

  • Vendor: Exim
  • Product: Exim
  • CVSS: 9.8
  • EPSS (probability of exploitation within 30 days): 82.1 %
  • On CISA's Known Exploited Vulnerabilities list since: 3 November 2021
  • First known exploitation: 3 November 2021
  • Used in ransomware campaigns (per CISA): Yes
  • CISA's deadline for US federal agencies: 3 May 2022
  • Weakness: CWE-119
  • First seen by Risk Letters: 3 November 2021

Members see which Nordic sectors the flaw hits, and what to do about it.

Get the full brief

Data: NVD (public domain), CISA KEV, FIRST EPSS, MITRE ATT&CK, AlienVault OTX. NVD