Exim Exim
YES - ON THE CISA KEV LIST
CVE-2010-4344
Exim Heap-Based Buffer Overflow Vulnerability
overdue since 2022-04-15
Exim: 5 entries (0.3% of all KEV entries are from this vendor); 0 added in 2026.
BOD 26-04 note: this is the date printed in the CISA catalog. A federal agency's actual deadline is set by its SSVC tier - Act (3 days), Attend (14 days), Track (60 days), or the next scheduled upgrade - counted from the KEV listing date or the date the vulnerability is identified in its environment, whichever comes first. Use the tier helper on each CVE page for your own window.
Your BOD 26-04 window (SSVC tier helper)
Your remediation window ends:
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.
Required action (CISA)
Apply updates per vendor instructions.
Notes
https://nvd.nist.gov/vuln/detail/CVE-2010-4344
References
Other KEV entries for this vendor: Exim
- CVE-2010-4345 - Exim (2022-03-25)
- CVE-2019-16928 - Exim Internet Mailer (2022-03-03)
- CVE-2019-10149 - Mail Transfer Agent (MTA) (2022-01-10)
- CVE-2018-6789 - Exim (2021-11-03)
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