CVE-2012-5671

MediumCVSS 6.8/10Last modified Jun 16, 2026

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.

Metrics

CVSS 2.0 6.8/10AV:N/AC:M/Au:N/C:P/I:P/A:P

Weakness enumeration

Affected software

No affected versions have been published.

Timeline

Published
Oct 31, 2012
Last modified
Jun 16, 2026
NVD status
Modified

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CVE-2012-5671: Medium severity, CVSS 6.8 | Vulnix