6.8 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
0.702 High
EPSS
Percentile
98.0%
Heap-based buffer overflow in the dkim_exim_query_dns_txt function in
dkim.c in Exim 4.70 through 4.80, when DKIM support is enabled and
acl_smtp_connect and acl_smtp_rcpt are not set to “warn control =
dkim_disable_verify,” allows remote attackers to execute arbitrary code via
an email from a malicious DNS server.