Skip to content
OpenAdvisories

Package · Ubuntu

exim4

53 known vulnerabilities.

53 results · Feed

  • Medium 4.0

    Exim before 4.100.1 allows SMTP smuggling in which the received message does not match any sent message, and instead de…

  • High 7.5

    Exim before 4.100.1, when Proxy-Protocol is used with an attacker-controlled proxy, allows attackers to read certain un…

  • Low 3.7

    Exim before 4.100.1, when certain non-default TLS settings are used with GnuTLS, has a use-after-free.

  • High 7.0

    Exim before 4.100.1, when Proxy-Protocol is used with an attacker-controlled proxy, has an out-of-bounds write.

  • High 7.4

    Exim before 4.99.5 allows .forward privilege escalation because force_command for a pipe transport is mishandled.

  • High 8.4

    Exim before 4.99.5 allows directory traversal to access files outside of the spool area, and consequently gain privileg…

  • Medium 5.3

    Exim 4.88 before 4.99.4, in some proxy configurations, mishandles certain short payloads, leading to disclosure of unin…

  • Critical 9.8
    CVE-2026-45185 Public exploit

    Exim before 4.99.3, in certain GnuTLS configurations, has a remotely reachable use-after-free in the BDAT body parsing …

  • Medium 4.8

    In Exim before 4.99.2, when the SPA authentication driver is used with an adversarial SPA resource, there can be an out…

  • Medium 6.5

    In Exim before 4.99.2, when JSON lookup is enabled, an out-of-bounds heap write can occur when a JSON operator encounte…

  • Low 3.7

    In Exim before 4.99.2, when utf8 operators are enabled, there is an out-of-bounds read if large UTF-8 trailing characte…

  • High 8.1

    A use-after-free in Exim 4.96 through 4.98.1 could allow users (with command-line access) to escalate privileges.

  • Medium 5.4
    CVE-2024-39929 Public exploit EPSS 41%

    Exim through 4.97.1 misparses a multiline RFC 2231 header filename, and thus remote attackers can bypass a $mime_filena…

  • High 7.5

    Exim libspf2 Integer Underflow Remote Code Execution Vulnerability

    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 spe…

  • Low 3.1

    Exim dnsdb Out-Of-Bounds Read Information Disclosure Vulnerability

    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 spe…

  • High 8.1

    Exim Improper Neutralization of Special Elements Remote Code Execution Vulnerability

    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 spe…

  • High 8.1

    Exim SMTP Challenge Stack-based Buffer Overflow Remote Code Execution Vulnerability

    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 spec…

  • Critical 9.8
    CVE-2023-42115 Public exploit EPSS 12%

    Exim AUTH Out-Of-Bounds Write Remote Code Execution Vulnerability

    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 w…

  • Low 3.7
    CVE-2023-42114 EPSS 27%

    Exim NTLM Challenge Out-Of-Bounds Read Information Disclosure Vulnerability

    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 spec…

  • Unscored —

    Exim before 4.97.1 allows SMTP smuggling in certain PIPELINING/CHUNKING configurations. Remote attackers can use a publ…

  • Medium 4.6

    Exim Regex use after free

    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 reco…

  • Unscored —

    Exim before 4.95 has a heap-based buffer overflow for the alias list in host_name_lookup in host.c when sender_host_nam…

  • Unscored —

    The STARTTLS feature in Exim through 4.94.2 allows response injection (buffering) during MTA SMTP sending.

  • Unscored —

    Exim 4 before 4.94.2 has Execution with Unnecessary Privileges. By leveraging a delete_pid_file race condition, a local…

  • Unscored —

    Exim 4 before 4.94.2 has Improper Neutralization of Line Delimiters, relevant in non-default configurations that enable…

  • Unscored —

    Exim 4 before 4.94.2 allows Out-of-bounds Read because pdkim_finish_bodyhash does not validate the relationship between…

  • Unscored —

    Exim 4 before 4.94.2 allows Buffer Underwrite that may result in unauthenticated remote attackers executing arbitrary c…

  • Unscored —

    Exim 4 before 4.94.2 allows Out-of-bounds Read. smtp_setup_msg may disclose sensitive information from process memory t…

  • Unscored —
    CVE-2020-28022 Public exploit

    Exim 4 before 4.94.2 has Improper Restriction of Write Operations within the Bounds of a Memory Buffer. This occurs whe…

  • Unscored —

    Exim 4 before 4.94.2 has Improper Neutralization of Line Delimiters. An authenticated remote SMTP client can insert new…

  • Unscored —

    Exim 4 before 4.92 allows Integer Overflow to Buffer Overflow, in which an unauthenticated remote attacker can execute …

  • Unscored —
    CVE-2020-28019 EPSS 62%

    Exim 4 before 4.94.2 has Improper Initialization that can lead to recursion-based stack consumption or other consequenc…

  • Unscored —
    CVE-2020-28018 Public exploit EPSS 56%

    Exim 4 before 4.94.2 allows Use After Free in smtp_reset in certain situations that may be common for builds with OpenS…

  • Unscored —
    CVE-2020-28017 EPSS 37%

    Exim 4 before 4.94.2 allows Integer Overflow to Buffer Overflow in receive_add_recipient via an e-mail message with fif…

  • Unscored —

    Exim 4 before 4.94.2 has Improper Neutralization of Line Delimiters. Local users can alter the behavior of root process…

  • Unscored —

    Exim 4 before 4.94.2 allows Execution with Unnecessary Privileges. The -oP option is available to the exim user, and al…

  • Unscored —

    Exim 4 before 4.94.2 allows Heap-based Buffer Overflow because it mishandles "-F '.('" on the command line, and thus ma…

  • Unscored —

    Exim 4 before 4.94.2 allows Exposure of File Descriptor to Unintended Control Sphere because rda_interpret uses a privi…

  • Unscored —

    Exim 4 before 4.94.2 allows Heap-based Buffer Overflow in queue_run via two sender options: -R and -S. This may cause p…

  • Unscored —

    Exim 4 before 4.94.2 allows Out-of-bounds Write because the main function, while setuid root, copies the current workin…