VULNERABILITY INTELLIGENCE
CVE-2012-5671
CVSS score6.8 MEDIUM
EPSS probability8.38%
CISA KEVNot currently listed
Published2012-10-31
Last modified2026-06-16
CVSS vectorAV:N/AC:M/Au:N/C:P/I:P/A:P
Description
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.
Weakness classification
- CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer