Filtered by vendor Exim
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Total
63 CVE
| CVE | Vendors | Products | Updated | CVSS v2 | CVSS v3 |
|---|---|---|---|---|---|
| CVE-2026-40687 | 1 Exim | 1 Exim | 2026-05-01 | N/A | 4.8 MEDIUM |
| In Exim before 4.99.2, when the SPA authentication driver is used with an adversarial SPA resource, there can be an out-of-bounds write that crashes the connection instance, or erroneous data processing that divulges data from uninitialized heap memory. | |||||
| CVE-2026-40684 | 1 Exim | 1 Exim | 2026-05-01 | N/A | 5.9 MEDIUM |
| In Exim before 4.99.2, on systems using musl libc (not glibc), an attacker can crash the connection instance when malformed DNS data is present in PTR records. This is caused by a dn_expand oddity in octal printing. | |||||
| CVE-2026-40685 | 1 Exim | 1 Exim | 2026-05-01 | N/A | 6.5 MEDIUM |
| In Exim before 4.99.2, when JSON lookup is enabled, an out-of-bounds heap write can occur when a JSON operator encounters malformed JSON in an untrusted header, because of an incorrect implementation of \ skipping. | |||||
| CVE-2026-40686 | 1 Exim | 1 Exim | 2026-05-01 | N/A | 3.7 LOW |
| 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). Information might be divulged within an error message produced during handling of an unrelated e-mail message. | |||||
| CVE-2012-5671 | 1 Exim | 1 Exim | 2026-04-29 | 6.8 MEDIUM | N/A |
| 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. | |||||
| CVE-2011-1407 | 1 Exim | 1 Exim | 2026-04-29 | 7.5 HIGH | N/A |
| The DKIM implementation in Exim 4.7x before 4.76 permits matching for DKIM identities to apply to lookup items, instead of only strings, which allows remote attackers to execute arbitrary code or access a filesystem via a crafted identity. | |||||
| CVE-2011-1764 | 1 Exim | 1 Exim | 2026-04-29 | 7.5 HIGH | N/A |
| Format string vulnerability in the dkim_exim_verify_finish function in src/dkim.c in Exim before 4.76 might allow remote attackers to execute arbitrary code or cause a denial of service (daemon crash) via format string specifiers in data used in DKIM logging, as demonstrated by an identity field containing a % (percent) character. | |||||
| CVE-2010-2023 | 1 Exim | 1 Exim | 2026-04-29 | 4.4 MEDIUM | N/A |
| transports/appendfile.c in Exim before 4.72, when a world-writable sticky-bit mail directory is used, does not verify the st_nlink field of mailbox files, which allows local users to cause a denial of service or possibly gain privileges by creating a hard link to another user's file. | |||||
| CVE-2011-0017 | 1 Exim | 1 Exim | 2026-04-29 | 6.9 MEDIUM | N/A |
| The open_log function in log.c in Exim 4.72 and earlier does not check the return value from (1) setuid or (2) setgid system calls, which allows local users to append log data to arbitrary files via a symlink attack. | |||||
| CVE-2010-2024 | 1 Exim | 1 Exim | 2026-04-29 | 4.4 MEDIUM | N/A |
| transports/appendfile.c in Exim before 4.72, when MBX locking is enabled, allows local users to change permissions of arbitrary files or create arbitrary files, and cause a denial of service or possibly gain privileges, via a symlink attack on a lockfile in /tmp/. | |||||
| CVE-2010-4344 | 4 Canonical, Debian, Exim and 1 more | 4 Ubuntu Linux, Debian Linux, Exim and 1 more | 2026-04-21 | 9.3 HIGH | 9.8 CRITICAL |
| Heap-based buffer overflow in the string_vformat function in string.c in Exim before 4.70 allows remote attackers to execute arbitrary code via an SMTP session that includes two MAIL commands in conjunction with a large message containing crafted headers, leading to improper rejection logging. | |||||
| CVE-2010-4345 | 4 Canonical, Debian, Exim and 1 more | 4 Ubuntu Linux, Debian Linux, Exim and 1 more | 2026-04-21 | 6.9 MEDIUM | 7.8 HIGH |
| Exim 4.72 and earlier allows local users to gain privileges by leveraging the ability of the exim user account to specify an alternate configuration file with a directive that contains arbitrary commands, as demonstrated by the spool_directory directive. | |||||
| CVE-2025-67896 | 1 Exim | 1 Exim | 2025-12-22 | N/A | 7.0 HIGH |
| Exim before 4.99.1, with certain non-default rate-limit configurations, allows a remote heap-based buffer overflow because database records are cast directly to internal structures without validation. | |||||
| CVE-2025-26794 | 1 Exim | 1 Exim | 2025-12-18 | N/A | 7.5 HIGH |
| Exim 4.98 before 4.98.1, when SQLite hints and ETRN serialization are used, allows remote SQL injection. (Resolving SQL injection requires an update to 4.99.1 in certain non-default rate-limit configurations.) | |||||
| CVE-2019-16928 | 4 Canonical, Debian, Exim and 1 more | 4 Ubuntu Linux, Debian Linux, Exim and 1 more | 2025-11-07 | 7.5 HIGH | 9.8 CRITICAL |
| Exim 4.92 through 4.92.2 allows remote code execution, a different vulnerability than CVE-2019-15846. There is a heap-based buffer overflow in string_vformat in string.c involving a long EHLO command. | |||||
| CVE-2018-6789 | 3 Canonical, Debian, Exim | 3 Ubuntu Linux, Debian Linux, Exim | 2025-11-07 | 7.5 HIGH | 9.8 CRITICAL |
| An issue was discovered in the base64d function in the SMTP listener in Exim before 4.90.1. By sending a handcrafted message, a buffer overflow may happen. This can be used to execute code remotely. | |||||
| CVE-2019-10149 | 3 Canonical, Debian, Exim | 3 Ubuntu Linux, Debian Linux, Exim | 2025-11-06 | 10.0 HIGH | 9.8 CRITICAL |
| A flaw was found in Exim versions 4.87 to 4.91 (inclusive). Improper validation of recipient address in deliver_message() function in /src/deliver.c may lead to remote command execution. | |||||
| CVE-2023-42116 | 1 Exim | 1 Exim | 2025-11-04 | N/A | 9.8 CRITICAL |
| Exim SMTP Challenge Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Exim. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of NTLM challenge requests. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the service account. . Was ZDI-CAN-17515. | |||||
| CVE-2023-42114 | 1 Exim | 1 Exim | 2025-11-04 | N/A | 5.3 MEDIUM |
| Exim NTLM Challenge Out-Of-Bounds Read Information Disclosure Vulnerability. This vulnerability allows remote attackers to disclose sensitive information on affected installations of Exim. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of NTLM challenge requests. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated data structure. An attacker can leverage this vulnerability to disclose information in the context of the service account. . Was ZDI-CAN-17433. | |||||
| CVE-2023-51766 | 3 Debian, Exim, Fedoraproject | 4 Debian Linux, Exim, Extra Packages For Enterprise Linux and 1 more | 2025-11-04 | N/A | 5.3 MEDIUM |
| Exim before 4.97.1 allows SMTP smuggling in certain PIPELINING/CHUNKING configurations. Remote attackers can use a published exploitation technique to inject e-mail messages with a spoofed MAIL FROM address, allowing bypass of an SPF protection mechanism. This occurs because Exim supports <LF>.<CR><LF> but some other popular e-mail servers do not. | |||||