Filtered by vendor Exim
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Total
56 CVE
| CVE | Vendors | Products | Updated | CVSS v2 | CVSS v3 |
|---|---|---|---|---|---|
| CVE-2023-42119 | 1 Exim | 1 Exim | 2025-08-07 | N/A | N/A |
| Exim dnsdb Out-Of-Bounds Read Information Disclosure Vulnerability. This vulnerability allows network-adjacent attackers to disclose sensitive information on affected installations of Exim. Authentication is not required to exploit this vulnerability. The specific flaw exists within the smtp service, which listens on TCP port 25 by default. 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 buffer. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the service account. . Was ZDI-CAN-17643. | |||||
| CVE-2023-42118 | 2 Exim, Libspf2 Project | 2 Exim, Libspf2 | 2025-08-07 | N/A | 8.8 HIGH |
| Exim libspf2 Integer Underflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Exim libspf2. Authentication is not required to exploit this vulnerability. The specific flaw exists within the parsing of SPF macros. When parsing SPF macros, the process does not properly validate user-supplied data, which can result in an integer underflow before writing to memory. An attacker can leverage this vulnerability to execute code in the context of the service account. . Was ZDI-CAN-17578. | |||||
| CVE-2023-42117 | 1 Exim | 1 Exim | 2025-08-07 | N/A | 9.8 CRITICAL |
| Exim Improper Neutralization of Special Elements 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 smtp service, which listens on TCP port 25 by default. The issue results from the lack of proper validation of user-supplied data, which can result in a memory corruption condition. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-17554. | |||||
| CVE-2023-42116 | 1 Exim | 1 Exim | 2025-08-07 | 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-2023-42115 | 1 Exim | 1 Exim | 2025-08-07 | N/A | N/A |
| Exim AUTH Out-Of-Bounds Write 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 smtp service, which listens on TCP port 25 by default. The issue results from the lack of proper validation of user-supplied data, which can result in a write past the end of a buffer. An attacker can leverage this vulnerability to execute code in the context of the service account. . Was ZDI-CAN-17434. | |||||
| CVE-2023-42114 | 1 Exim | 1 Exim | 2025-08-07 | 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-2024-39929 | 1 Exim | 1 Exim | 2025-07-10 | N/A | N/A |
| 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 deliver executable attachments to the mailboxes of end users. | |||||
| CVE-2022-3559 | 2 Exim, Fedoraproject | 2 Exim, Fedora | 2025-05-23 | N/A | 7.5 HIGH |
| A vulnerability was found in Exim and classified as problematic. This issue affects some unknown processing of the component Regex Handler. The manipulation leads to use after free. The name of the patch is 4e9ed49f8f12eb331b29bd5b6dc3693c520fddc2. It is recommended to apply a patch to fix this issue. The identifier VDB-211073 was assigned to this vulnerability. | |||||
| CVE-2022-3620 | 2 Exim, Fedoraproject | 2 Exim, Fedora | 2025-05-23 | N/A | 9.8 CRITICAL |
| A vulnerability was found in Exim and classified as problematic. This issue affects the function dmarc_dns_lookup of the file dmarc.c of the component DMARC Handler. The manipulation leads to use after free. The attack may be initiated remotely. The name of the patch is 12fb3842f81bcbd4a4519d5728f2d7e0e3ca1445. It is recommended to apply a patch to fix this issue. The associated identifier of this vulnerability is VDB-211919. | |||||
| CVE-2019-10149 | 3 Canonical, Debian, Exim | 3 Ubuntu Linux, Debian Linux, Exim | 2025-04-01 | 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-2018-6789 | 3 Canonical, Debian, Exim | 3 Ubuntu Linux, Debian Linux, Exim | 2025-03-14 | 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-2010-4345 | 4 Canonical, Debian, Exim and 1 more | 4 Ubuntu Linux, Debian Linux, Exim and 1 more | 2025-03-13 | 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-2010-4344 | 4 Canonical, Debian, Exim and 1 more | 4 Ubuntu Linux, Debian Linux, Exim and 1 more | 2025-03-13 | 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-2019-16928 | 4 Canonical, Debian, Exim and 1 more | 4 Ubuntu Linux, Debian Linux, Exim and 1 more | 2025-03-07 | 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-2023-51766 | 3 Debian, Exim, Fedoraproject | 4 Debian Linux, Exim, Extra Packages For Enterprise Linux and 1 more | 2024-02-02 | 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. | |||||
| CVE-2022-37451 | 2 Exim, Fedoraproject | 2 Exim, Fedora | 2023-11-07 | N/A | 7.5 HIGH |
| Exim before 4.96 has an invalid free in pam_converse in auths/call_pam.c because store_free is not used after store_malloc. | |||||
| CVE-2020-12783 | 4 Canonical, Debian, Exim and 1 more | 4 Ubuntu Linux, Debian Linux, Exim and 1 more | 2023-11-07 | 5.0 MEDIUM | 7.5 HIGH |
| Exim through 4.93 has an out-of-bounds read in the SPA authenticator that could result in SPA/NTLM authentication bypass in auths/spa.c and auths/auth-spa.c. | |||||
| CVE-2019-15846 | 2 Debian, Exim | 2 Debian Linux, Exim | 2023-11-07 | 10.0 HIGH | 9.8 CRITICAL |
| Exim before 4.92.2 allows remote attackers to execute arbitrary code as root via a trailing backslash. | |||||
| CVE-2022-37452 | 2 Debian, Exim | 2 Debian Linux, Exim | 2022-10-28 | N/A | 9.8 CRITICAL |
| Exim before 4.95 has a heap-based buffer overflow for the alias list in host_name_lookup in host.c when sender_host_name is set. | |||||
| CVE-2020-28017 | 1 Exim | 1 Exim | 2022-10-04 | 7.5 HIGH | 9.8 CRITICAL |
| Exim 4 before 4.94.2 allows Integer Overflow to Buffer Overflow in receive_add_recipient via an e-mail message with fifty million recipients. NOTE: remote exploitation may be difficult because of resource consumption. | |||||