CVE Feed

    Dashboard / CVE / CVE-2026-94057

    CVE-2026-94057

    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 processing.

    Published:Sep 19, 2026
    Last Modified:Sep 22, 2026
    EPS:Sep 19, 2026
    EPSS Score:0.00162
    CVSS Score:4

    Affected Products

    Vendor
    Exim
    Product
    Exim

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-15 Command Delimiters
    CAPEC-81 Web Server Logs Tampering

    Related CVEs

    CVE-2026-94056 (CVSS 7.5) — Exim before 4.100.1, when Proxy-Protocol is used with an attacker-controlled proxy, allows attackers to read c…
    CVE-2026-94055 (CVSS 3.7) — Exim before 4.100.1, when certain non-default TLS settings are used with GnuTLS, has a use-after-free.…
    CVE-2026-94054 (CVSS 7) — Exim before 4.100.1, when Proxy-Protocol is used with an attacker-controlled proxy, has an out-of-bounds write…
    CVE-2026-66141 (CVSS 7.4) — Exim before 4.99.5 allows .forward privilege escalation because force_command for a pipe transport is mishandl…
    CVE-2026-66140 (CVSS 8.4) — Exim before 4.99.5 allows directory traversal to access files outside of the spool area, and consequently gain…
    CVE-2026-48840 (CVSS 5.3) — Exim 4.88 before 4.99.4, in some proxy configurations, mishandles certain short payloads, leading to disclosur…
    CVE-2026-45185 (CVSS 9.8) — Exim before 4.99.3, in certain GnuTLS configurations, has a remotely reachable use-after-free in the BDAT body…
    CVE-2026-40686 (CVSS 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…
    CVE-2026-40685 (CVSS 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…
    CVE-2026-40684 (CVSS 5.9) — In Exim before 4.99.2, on systems using musl libc (not glibc), an attacker can crash the connection instance w…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High