CVE-2012-5671
MEDIUM · CVSS 6.8EPSS 8.4%EU EUVD
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.
Key facts
- CVSS score
- 6.8 (v2.0)
- Severity
- MEDIUM
- CVSS vector
AV:N/AC:M/Au:N/C:P/I:P/A:P- Weakness (CWE)
- CWE-119
- EPSS score
- 8.4% (95th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2012-5554)
- Published
- October 31, 2012
- NVD last modified
- June 16, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2012-5554 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.
View on the EU Vulnerability DatabaseAffected products
- exim / exim
- exim / exim
- exim / exim
- exim / exim
- exim / exim
- exim / exim
- exim / exim
- exim / exim
- exim / exim
References
- http://lists.fedoraproject.org/pipermail/package-announce/2012-November/091664.html
- http://lists.fedoraproject.org/pipermail/package-announce/2012-October/090900.html
- http://lists.fedoraproject.org/pipermail/package-announce/2012-October/090963.html
- http://lists.opensuse.org/opensuse-security-announce/2012-10/msg00018.html
- http://osvdb.org/86616
- http://secunia.com/advisories/51098(Vendor Advisory)
- http://secunia.com/advisories/51115
- http://secunia.com/advisories/51153
- http://secunia.com/advisories/51155
- http://www.debian.org/security/2012/dsa-2566
- http://www.openwall.com/lists/oss-security/2012/10/26/5
- http://www.securityfocus.com/bid/56285
- http://www.ubuntu.com/usn/USN-1618-1
- https://exchange.xforce.ibmcloud.com/vulnerabilities/79615
- https://lists.exim.org/lurker/message/20121026.080330.74b9147b.en.html
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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