Is CVE-2012-5671 in the CISA KEV catalog?

No. CVE-2012-5671 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2012-5671?

CVE-2012-5671 has a CVSS v2 base score of 6.8 (MEDIUM).

What is the EPSS score for CVE-2012-5671?

CVE-2012-5671 has an EPSS score of 8.38% (94th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2012-5671?

Upgrade exim4 on debian 11 to 4.80-5.1 or later.

CVE & CISA-KEV Catalog

CVE-2012-5671

MEDIUMEPSS 94th pctl

6.8

CVSS v2

NVD

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.

CWE-119Buffer Overflow

How to fix

Remediation Available

exim4Debian

Fixed in:4.80-5.1CVE-2012-5671

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

8.38%probability of exploitation in 30 days

94thpercentile

High risk: more likely to be exploited than 94% of all known CVEs.

References

Vendor Advisory1

secunia.com

Other references14

Related Vulnerabilities

Other CWE-119 (Buffer Overflow) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-4966	Critical	9.4	100%	KEV + Ransom	Fix
CVE-2017-11882	High	7.8	100%	KEV + Ransom	-
CVE-2020-0796	Critical	10.0	100%	KEV + Ransom	-
CVE-2008-4250	Critical	9.8	99%	KEV	-
CVE-2017-15944	Critical	9.8	98%	KEV	Fix
CVE-2015-0014	High	10.0	97%	-	-

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-29.