CVE-2025-1795 – Microsoft Exchange Comma Encoding Vulnerability

The following table lists the changes that have been made to the
CVE-2025-1795 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution
of a vulnerability, and for identifying the most recent changes that may
impact the vulnerability’s severity, exploitability, or other characteristics.

  • New CVE Received
    by [email protected]

    Feb. 28, 2025

    Action Type Old Value New Value
    Added Description During an address list folding when a separating comma ends up on a folded line and that line is to be unicode-encoded then the separator itself is also unicode-encoded. Expected behavior is that the separating comma remains a plan comma. This can result in the address header being misinterpreted by some mail servers.
    Added CVSS V4.0 AV:N/AC:H/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
    Added Reference https://github.com/python/cpython/issues/100884
    Added Reference https://github.com/python/cpython/pull/100885
    Added Reference https://github.com/python/cpython/pull/119099
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