Описание
In Exim before 4.99.2, when utf8 operators are enabled, there is an out-of-bounds read if large UTF-8 trailing characters are present (malformed UTF-8 header data). Information might be divulged within an error message produced during handling of an unrelated e-mail message.
In Exim before 4.99.2, when utf8 operators are enabled, there is an out-of-bounds read if large UTF-8 trailing characters are present (malformed UTF-8 header data). Information might be divulged within an error message produced during handling of an unrelated e-mail message.
Ссылки
- https://nvd.nist.gov/vuln/detail/CVE-2026-40686
- https://code.exim.org/exim/exim/commit/f2570bde16fb4d4a1242ff363a4c4eecf6372efc
- https://exim.org/static/doc/security/CVE-2025-40686.txt
- https://exim.org/static/doc/security/CVE-2026-40686.txt
- https://exim.org/static/doc/security/cve-2026-04.1/CVE2026-40686.assessment
- https://www.openwall.com/lists/oss-security/2026/04/30/21
Связанные уязвимости
In Exim before 4.99.2, when utf8 operators are enabled, there is an out-of-bounds read if large UTF-8 trailing characters are present (malformed UTF-8 header data). Information might be divulged within an error message produced during handling of an unrelated e-mail message.
In Exim before 4.99.2, when utf8 operators are enabled, there is an out-of-bounds read if large UTF-8 trailing characters are present (malformed UTF-8 header data). Information might be divulged within an error message produced during handling of an unrelated e-mail message.
In Exim before 4.99.2, when utf8 operators are enabled, there is an ou ...
Уязвимость почтового сервера Exim, связанная с чтением за допустимыми границами буфера данных, позволяющая нарушителю получить доступ к конфиденциальным данным
