CVE-2020-28017
moderate-risk
Published 2021-05-06
Exim 4 before 4.94.2 allows Integer Overflow to Buffer Overflow in receive_add_recipient via an e-mail message with fifty million recipients. NOTE: remote exploitation may be difficult because of resource consumption.
Do I need to act?
~
3.7% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
+
Fix available
Upgrade to: 6429b0fc79595f120703c022ae99aa10d698f909
9
CVSS 9.8/10
Critical
NETWORK
/ LOW complexity
Affected Products (1)
Affected Vendors
References (2)
44
/ 100
moderate-risk
Severity
32/34 · Critical
Exploitability
7/34 · Low
Exposure
5/34 · Minimal