All vulnerabilities
CVE-2010-4344

Exim Heap-Based Buffer Overflow Vulnerability

Exim EximNetwork & edge
Open in ThreatlineRecord JSON
CVSS
9.8Critical
ExploitationExploited in the wildAdded to KEV 25 Mar 2022CISA KEV
Exploit odds (EPSS)71.7%Chance of exploitation activity in the next 30 days, higher than 99% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version yet
Federal deadline15 Apr 2022Remediation due date for US federal agenciesCISA KEV
CISA required actionApply updates per vendor instructions. CISA KEV

What fixes it

No source in this snapshot names a fixed version.

Timeline

  1. 7 Dec 2010Exploit code publicMetasploit
  2. 14 Dec 2010, 15:00 UTCPublishedCVE List
  3. 25 Mar 2022Added to CISA KEVCISA KEV

Public exploit code and templates 3

  • Exploit moduleExim4 string_format Function Heap Buffer Overflow 7 Dec 2010Metasploit
  • Remote exploitExim 4.63 - Remote Command Execution 11 Dec 2010Exploit-DB
  • Remote exploitExim4 < 4.69 - string_format Function Heap Buffer Overflow (Metasploit) 16 Dec 2010Exploit-DB

Listed so defenders can prioritize. Threatline links to the source and does not host exploit code.

Description

Heap-based buffer overflow in the string_vformat function in string.c in Exim before 4.70 allows remote attackers to execute arbitrary code via an SMTP session.

Text from CVE List

Affected versions 1

  • n/aaffected: n/aCVE List

References 3