EX
Product
exim
by exim · last CVE Sep 19, 2026
On CISA KEVExploited in the wildRansomware-linked
70
CVEs
5
On KEV
9.8
Max CVSS
0
New 30D
Severity mix
Critical 23High 26Medium 12Low 1
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CVECVSSEPSSPublishedSummary · affected versions
CVE-2021-27216
6.3
1%
May 6
Exim 4 before 4.94.2 has Execution with Unnecessary Privileges
Affected: before 4.94.2
CVE-2020-28014
6.1
1%
May 6
Exim 4 before 4.94.2 allows Execution with Unnecessary Privileges
Affected: 4.00 before 4.94.2
CVE-2016-9963
5.9
3%
Feb 1
Exim before 4.87.1 might allow remote attackers to obtain the private DKIM signing key via vectors related to log files and bounce messages
Affected: through 4.87
CVE-2024-39929
5.4
41%
Jul 4
Exim through 4.97.1 misparses a multiline RFC 2231 header filename, and thus remote attackers can bypass a $mime_filename extension-blocking protection mechanism, and potentially…
Affected: through 4.97.1
CVE-2026-94057
5.3
0%
Sep 19
Exim before 4.100.1 allows SMTP smuggling in which the received message does not match any sent message, and instead depends on crafted data sent after a rejection during DATA…
Affected: before 4.100.1
CVE-2026-94055
5.3
0%
Sep 19
Exim before 4.100.1, when certain non-default TLS settings are used with GnuTLS, has a use-after-free
Affected: 4.98 before 4.100.1
CVE-2026-94054
5.3
0%
Sep 19
Exim before 4.100.1, when Proxy-Protocol is used with an attacker-controlled proxy, has an out-of-bounds write
Affected: 4.83 before 4.100.1
CVE-2026-48840
5.3
0%
May 30
Exim 4.88 before 4.99.4, in some proxy configurations, mishandles certain short payloads, leading to disclosure of uninitialized stack memory values to a client
Affected: 4.88 before 4.99.4
CVE-2026-40686
5.3
0%
Apr 30
In Exim before 4.99.2, when utf8 operators are enabled, there is an out-of-bounds read if large UTF-8 trailing characters are present (malformed UTF-8 header data)
Affected: before 4.99.2
CVE-2023-42114
5.3
27%
May 3
Exim NTLM Challenge Out-Of-Bounds Read Information Disclosure Vulnerability
Affected: before 4.96.1
CVE-2023-51766
5.3
1%
Dec 24
Exim before 4.97.1 allows SMTP smuggling in certain PIPELINING/CHUNKING configurations
Affected: before 4.97.1
CVE-2017-1000369
4.0
1%
Jun 19
Exim supports the use of multiple "-p" command line arguments which are malloc()'ed and never free()'ed, used in conjunction with other issues allows attackers to cause arbitrary…
Affected: through 4.87.1; 4.88; 4.88; 4.88; 4.88; 4.88; +10 more
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