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177 vulnerabilities found for Exim by Exim

CVE-2025-67896 (GCVE-0-2025-67896)

Vulnerability from nvd – Published: 2025-12-14 04:00 – Updated: 2025-12-18 23:04
VLAI?
Summary
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.
CWE
  • CWE-122 - Heap-based Buffer Overflow
Assigner
Impacted products
Vendor Product Version
Exim Exim Affected: 4.99 , < 4.99.1 (custom)
Create a notification for this product.
Show details on NVD website

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CVE-2025-30232 (GCVE-0-2025-30232)

Vulnerability from nvd – Published: 2025-03-27 00:00 – Updated: 2025-03-28 14:37
VLAI?
Summary
A use-after-free in Exim 4.96 through 4.98.1 could allow users (with command-line access) to escalate privileges.
CWE
Assigner
Impacted products
Vendor Product Version
Exim Exim Affected: 4.96 , < 4.98.2 (custom)
Create a notification for this product.
Show details on NVD website

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CVE-2025-26794 (GCVE-0-2025-26794)

Vulnerability from nvd – Published: 2025-02-21 00:00 – Updated: 2025-12-18 18:21
VLAI?
Summary
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.)
CWE
  • CWE-89 - Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
Assigner
Impacted products
Vendor Product Version
Exim Exim Affected: 4.98 , < 4.98.1 (custom)
Create a notification for this product.
Show details on NVD website

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CVE-2024-39929 (GCVE-0-2024-39929)

Vulnerability from nvd – Published: 2024-07-04 00:00 – Updated: 2025-03-18 15:37
VLAI?
Summary
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.
CWE
  • n/a
Assigner
Show details on NVD website

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CVE-2023-42119 (GCVE-0-2023-42119)

Vulnerability from nvd – Published: 2024-05-03 02:13 – Updated: 2025-11-03 21:49
VLAI?
Title
Exim dnsdb Out-Of-Bounds Read Information Disclosure Vulnerability
Summary
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.
CWE
Assigner
zdi
References
Impacted products
Vendor Product Version
Exim Exim Affected: exim 4.96-RC0-14-24b8ed847-XX
Create a notification for this product.
Show details on NVD website

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CVE-2023-42117 (GCVE-0-2023-42117)

Vulnerability from nvd – Published: 2024-05-03 02:13 – Updated: 2025-11-03 21:49
VLAI?
Title
Exim Improper Neutralization of Special Elements Remote Code Execution Vulnerability
Summary
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.
CWE
  • CWE-138 - Improper Neutralization of Special Elements
Assigner
zdi
References
Impacted products
Vendor Product Version
Exim Exim Affected: 4.96-RC1-11-315206fbf
Create a notification for this product.
Show details on NVD website

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CVE-2023-42116 (GCVE-0-2023-42116)

Vulnerability from nvd – Published: 2024-05-03 02:13 – Updated: 2025-11-04 19:21
VLAI?
Title
Exim SMTP Challenge Stack-based Buffer Overflow Remote Code Execution Vulnerability
Summary
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.
CWE
  • CWE-121 - Stack-based Buffer Overflow
Assigner
zdi
References
Impacted products
Vendor Product Version
Exim Exim Affected: exim 4.95
Create a notification for this product.
Show details on NVD website

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CVE-2023-42115 (GCVE-0-2023-42115)

Vulnerability from nvd – Published: 2024-05-03 02:13 – Updated: 2024-09-20 19:51
VLAI?
Title
Exim AUTH Out-Of-Bounds Write Remote Code Execution Vulnerability
Summary
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.
CWE
Assigner
zdi
References
Impacted products
Vendor Product Version
Exim Exim Affected: exim 4.95
Create a notification for this product.
Show details on NVD website

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CVE-2023-42114 (GCVE-0-2023-42114)

Vulnerability from nvd – Published: 2024-05-03 02:13 – Updated: 2025-11-04 19:21
VLAI?
Title
Exim NTLM Challenge Out-Of-Bounds Read Information Disclosure Vulnerability
Summary
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.
CWE
Assigner
zdi
References
Impacted products
Vendor Product Version
Exim Exim Affected: exim 4.95
Create a notification for this product.
Show details on NVD website

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CVE-2025-67896 (GCVE-0-2025-67896)

Vulnerability from cvelistv5 – Published: 2025-12-14 04:00 – Updated: 2025-12-18 23:04
VLAI?
Summary
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.
CWE
  • CWE-122 - Heap-based Buffer Overflow
Assigner
Impacted products
Vendor Product Version
Exim Exim Affected: 4.99 , < 4.99.1 (custom)
Create a notification for this product.
Show details on NVD website

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CVE-2025-30232 (GCVE-0-2025-30232)

Vulnerability from cvelistv5 – Published: 2025-03-27 00:00 – Updated: 2025-03-28 14:37
VLAI?
Summary
A use-after-free in Exim 4.96 through 4.98.1 could allow users (with command-line access) to escalate privileges.
CWE
Assigner
Impacted products
Vendor Product Version
Exim Exim Affected: 4.96 , < 4.98.2 (custom)
Create a notification for this product.
Show details on NVD website

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CVE-2025-26794 (GCVE-0-2025-26794)

Vulnerability from cvelistv5 – Published: 2025-02-21 00:00 – Updated: 2025-12-18 18:21
VLAI?
Summary
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.)
CWE
  • CWE-89 - Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
Assigner
Impacted products
Vendor Product Version
Exim Exim Affected: 4.98 , < 4.98.1 (custom)
Create a notification for this product.
Show details on NVD website

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CVE-2024-39929 (GCVE-0-2024-39929)

Vulnerability from cvelistv5 – Published: 2024-07-04 00:00 – Updated: 2025-03-18 15:37
VLAI?
Summary
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.
CWE
  • n/a
Assigner
Show details on NVD website

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CVE-2023-42119 (GCVE-0-2023-42119)

Vulnerability from cvelistv5 – Published: 2024-05-03 02:13 – Updated: 2025-11-03 21:49
VLAI?
Title
Exim dnsdb Out-Of-Bounds Read Information Disclosure Vulnerability
Summary
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.
CWE
Assigner
zdi
References
Impacted products
Vendor Product Version
Exim Exim Affected: exim 4.96-RC0-14-24b8ed847-XX
Create a notification for this product.
Show details on NVD website

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CVE-2023-42117 (GCVE-0-2023-42117)

Vulnerability from cvelistv5 – Published: 2024-05-03 02:13 – Updated: 2025-11-03 21:49
VLAI?
Title
Exim Improper Neutralization of Special Elements Remote Code Execution Vulnerability
Summary
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.
CWE
  • CWE-138 - Improper Neutralization of Special Elements
Assigner
zdi
References
Impacted products
Vendor Product Version
Exim Exim Affected: 4.96-RC1-11-315206fbf
Create a notification for this product.
Show details on NVD website

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CVE-2023-42116 (GCVE-0-2023-42116)

Vulnerability from cvelistv5 – Published: 2024-05-03 02:13 – Updated: 2025-11-04 19:21
VLAI?
Title
Exim SMTP Challenge Stack-based Buffer Overflow Remote Code Execution Vulnerability
Summary
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.
CWE
  • CWE-121 - Stack-based Buffer Overflow
Assigner
zdi
References
Impacted products
Vendor Product Version
Exim Exim Affected: exim 4.95
Create a notification for this product.
Show details on NVD website

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CVE-2023-42115 (GCVE-0-2023-42115)

Vulnerability from cvelistv5 – Published: 2024-05-03 02:13 – Updated: 2024-09-20 19:51
VLAI?
Title
Exim AUTH Out-Of-Bounds Write Remote Code Execution Vulnerability
Summary
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.
CWE
Assigner
zdi
References
Impacted products
Vendor Product Version
Exim Exim Affected: exim 4.95
Create a notification for this product.
Show details on NVD website

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CVE-2023-42114 (GCVE-0-2023-42114)

Vulnerability from cvelistv5 – Published: 2024-05-03 02:13 – Updated: 2025-11-04 19:21
VLAI?
Title
Exim NTLM Challenge Out-Of-Bounds Read Information Disclosure Vulnerability
Summary
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.
CWE
Assigner
zdi
References
Impacted products
Vendor Product Version
Exim Exim Affected: exim 4.95
Create a notification for this product.
Show details on NVD website

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FKIE_CVE-2025-30232

Vulnerability from fkie_nvd - Published: 2025-03-28 00:15 - Updated: 2025-09-30 21:52
Summary
A use-after-free in Exim 4.96 through 4.98.1 could allow users (with command-line access) to escalate privileges.
Impacted products
Vendor Product Version
exim exim *

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FKIE_CVE-2025-26794

Vulnerability from fkie_nvd - Published: 2025-02-21 13:15 - Updated: 2025-12-18 19:16

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FKIE_CVE-2024-39929

Vulnerability from fkie_nvd - Published: 2024-07-04 15:15 - Updated: 2025-07-10 22:15

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FKIE_CVE-2023-42119

Vulnerability from fkie_nvd - Published: 2024-05-03 03:15 - Updated: 2025-11-03 22:16
Summary
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.
Impacted products
Vendor Product Version
exim exim *

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FKIE_CVE-2023-42116

Vulnerability from fkie_nvd - Published: 2024-05-03 03:15 - Updated: 2025-11-04 20:16
Severity ?
Summary
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.
Impacted products
Vendor Product Version
exim exim *

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FKIE_CVE-2023-42117

Vulnerability from fkie_nvd - Published: 2024-05-03 03:15 - Updated: 2025-11-03 22:16
Severity ?
Summary
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.
Impacted products
Vendor Product Version
exim exim *

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  "published": "2024-05-03T03:15:50.463",
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      "type": "Secondary"
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  ]
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FKIE_CVE-2023-42115

Vulnerability from fkie_nvd - Published: 2024-05-03 03:15 - Updated: 2025-08-07 18:04
Severity ?
Summary
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.
Impacted products
Vendor Product Version
exim exim *

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    },
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      "lang": "es",
      "value": "Vulnerabilidad de ejecuci\u00f3n remota de c\u00f3digo de escritura fuera de los l\u00edmites de Exim AUTH. Esta vulnerabilidad permite a atacantes remotos ejecutar c\u00f3digo arbitrario en las instalaciones afectadas de Exim. No se requiere autenticaci\u00f3n para aprovechar esta vulnerabilidad. La falla espec\u00edfica existe dentro del servicio smtp, que escucha en el puerto TCP 25 de forma predeterminada. El problema se debe a la falta de una validaci\u00f3n adecuada de los datos proporcionados por el usuario, lo que puede provocar una escritura m\u00e1s all\u00e1 del final de un b\u00fafer. Un atacante puede aprovechar esta vulnerabilidad para ejecutar c\u00f3digo en el contexto de la cuenta de servicio. Era ZDI-CAN-17434."
    }
  ],
  "id": "CVE-2023-42115",
  "lastModified": "2025-08-07T18:04:28.990",
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  "published": "2024-05-03T03:15:50.123",
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FKIE_CVE-2023-42114

Vulnerability from fkie_nvd - Published: 2024-05-03 03:15 - Updated: 2025-11-04 20:16
Summary
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.
Impacted products
Vendor Product Version
exim exim *

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      "value": "Vulnerabilidad de divulgaci\u00f3n de informaci\u00f3n de lectura fuera de los l\u00edmites del desaf\u00edo Exim NTLM. Esta vulnerabilidad permite a atacantes remotos revelar informaci\u00f3n confidencial sobre las instalaciones afectadas de Exim. No se requiere autenticaci\u00f3n para aprovechar esta vulnerabilidad. La falla espec\u00edfica existe en el manejo de solicitudes de desaf\u00edo NTLM. El problema se debe a la falta de una validaci\u00f3n adecuada de los datos proporcionados por el usuario, lo que puede provocar una lectura m\u00e1s all\u00e1 del final de una estructura de datos asignada. Un atacante puede aprovechar esta vulnerabilidad para revelar informaci\u00f3n en el contexto de la cuenta de servicio. Era ZDI-CAN-17433."
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  ],
  "id": "CVE-2023-42114",
  "lastModified": "2025-11-04T20:16:48.767",
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CERTFR-2025-AVI-0244

Vulnerability from certfr_avis - Published: - Updated:

Une vulnérabilité a été découverte dans Exim. Elle permet à un attaquant de provoquer une élévation de privilèges.

Solutions

Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).

Impacted products
Vendor Product Description
Exim Exim Exim versions 4.96 à 4.98.x antérieures à 4.98.2
References
Bulletin de sécurité Exim CVE-2025-30232 2025-03-26 vendor-advisory

Show details on source website

{
  "$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
  "affected_systems": [
    {
      "description": "Exim versions 4.96 \u00e0 4.98.x ant\u00e9rieures \u00e0 4.98.2",
      "product": {
        "name": "Exim",
        "vendor": {
          "name": "Exim",
          "scada": false
        }
      }
    }
  ],
  "affected_systems_content": "",
  "content": "## Solutions\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des correctifs (cf. section Documentation).",
  "cves": [
    {
      "name": "CVE-2025-30232",
      "url": "https://www.cve.org/CVERecord?id=CVE-2025-30232"
    }
  ],
  "links": [],
  "reference": "CERTFR-2025-AVI-0244",
  "revisions": [
    {
      "description": "Version initiale",
      "revision_date": "2025-03-27T00:00:00.000000"
    }
  ],
  "risks": [
    {
      "description": "\u00c9l\u00e9vation de privil\u00e8ges"
    }
  ],
  "summary": "Une vuln\u00e9rabilit\u00e9 a \u00e9t\u00e9 d\u00e9couverte dans Exim. Elle permet \u00e0 un attaquant de provoquer une \u00e9l\u00e9vation de privil\u00e8ges.",
  "title": "Vuln\u00e9rabilit\u00e9 dans Exim",
  "vendor_advisories": [
    {
      "published_at": "2025-03-26",
      "title": "Bulletin de s\u00e9curit\u00e9 Exim CVE-2025-30232",
      "url": "https://www.exim.org/static/doc/security/CVE-2025-30232.txt"
    }
  ]
}

CERTFR-2025-AVI-0157

Vulnerability from certfr_avis - Published: - Updated:

Une vulnérabilité a été découverte dans Exim. Elle permet à un attaquant de provoquer une exécution de code arbitraire à distance.

Solutions

Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).

Impacted products
Vendor Product Description
Exim Exim Exim versions 4.98.x antérieures à 4.98.1
References
Bulletin de sécurité Exim CVE-2025-26794 2025-02-21 vendor-advisory

Show details on source website

{
  "$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
  "affected_systems": [
    {
      "description": "Exim versions 4.98.x ant\u00e9rieures \u00e0 4.98.1",
      "product": {
        "name": "Exim",
        "vendor": {
          "name": "Exim",
          "scada": false
        }
      }
    }
  ],
  "affected_systems_content": "",
  "content": "## Solutions\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des correctifs (cf. section Documentation).",
  "cves": [
    {
      "name": "CVE-2025-26794",
      "url": "https://www.cve.org/CVERecord?id=CVE-2025-26794"
    }
  ],
  "links": [],
  "reference": "CERTFR-2025-AVI-0157",
  "revisions": [
    {
      "description": "Version initiale",
      "revision_date": "2025-02-24T00:00:00.000000"
    }
  ],
  "risks": [
    {
      "description": "Ex\u00e9cution de code arbitraire \u00e0 distance"
    }
  ],
  "summary": "Une vuln\u00e9rabilit\u00e9 a \u00e9t\u00e9 d\u00e9couverte dans Exim. Elle permet \u00e0 un attaquant de provoquer une ex\u00e9cution de code arbitraire \u00e0 distance.",
  "title": "Vuln\u00e9rabilit\u00e9 dans Exim",
  "vendor_advisories": [
    {
      "published_at": "2025-02-21",
      "title": "Bulletin de s\u00e9curit\u00e9 Exim CVE-2025-26794",
      "url": "https://www.exim.org/static/doc/security/CVE-2025-26794.txt"
    }
  ]
}