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CVE-2025-53859

Опубликовано: 15 авг. 2025
Источник: ubuntu
Приоритет: medium
EPSS Низкий
CVSS3: 3.7

Описание

NGINX Open Source and NGINX Plus have a vulnerability in the ngx_mail_smtp_module that might allow an unauthenticated attacker to over-read NGINX SMTP authentication process memory; as a result, the server side may leak arbitrary bytes sent in a request to the authentication server. This issue happens during the NGINX SMTP authentication process and requires the attacker to make preparations against the target system to extract the leaked data. The issue affects NGINX only if (1) it is built with the ngx_mail_smtp_module, (2) the smtp_auth directive is configured with method "none," and (3) the authentication server returns the "Auth-Wait" response header. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

РелизСтатусПримечание
devel

released

1.26.3-3ubuntu3
esm-infra-legacy/trusty

needs-triage

esm-infra/bionic

needs-triage

esm-infra/focal

needs-triage

esm-infra/xenial

needs-triage

jammy

released

1.18.0-6ubuntu14.7
noble

released

1.24.0-2ubuntu7.5
plucky

released

1.26.3-2ubuntu1.2
upstream

needs-triage

Показывать по

EPSS

Процентиль: 12%
0.00043
Низкий

3.7 Low

CVSS3

Связанные уязвимости

CVSS3: 3.7
redhat
15 дней назад

NGINX Open Source and NGINX Plus have a vulnerability in the ngx_mail_smtp_module that might allow an unauthenticated attacker to over-read NGINX SMTP authentication process memory; as a result, the server side may leak arbitrary bytes sent in a request to the authentication server. This issue happens during the NGINX SMTP authentication process and requires the attacker to make preparations against the target system to extract the leaked data. The issue affects NGINX only if (1) it is built with the ngx_mail_smtp_module, (2) the smtp_auth directive is configured with method "none," and (3) the authentication server returns the "Auth-Wait" response header. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

CVSS3: 3.7
nvd
15 дней назад

NGINX Open Source and NGINX Plus have a vulnerability in the ngx_mail_smtp_module that might allow an unauthenticated attacker to over-read NGINX SMTP authentication process memory; as a result, the server side may leak arbitrary bytes sent in a request to the authentication server. This issue happens during the NGINX SMTP authentication process and requires the attacker to make preparations against the target system to extract the leaked data. The issue affects NGINX only if (1) it is built with the ngx_mail_smtp_module, (2) the smtp_auth directive is configured with method "none," and (3) the authentication server returns the "Auth-Wait" response header. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

CVSS3: 3.7
debian
15 дней назад

NGINX Open Source and NGINX Plus have a vulnerability in the ngx_mail_ ...

CVSS3: 3.7
github
15 дней назад

NGINX Open Source and NGINX Plus have a vulnerability in the ngx_mail_smtp_module that might allow an unauthenticated attacker to over-read NGINX SMTP authentication process memory; as a result, the server side may leak arbitrary bytes sent in a request to the authentication server. This issue happens during the NGINX SMTP authentication process and requires the attacker to make preparations against the target system to extract the leaked data. The issue affects NGINX only if (1) it is built with the ngx_mail_smtp_module, (2) the smtp_auth directive is configured with method "none," and (3) the authentication server returns the "Auth-Wait" response header. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

EPSS

Процентиль: 12%
0.00043
Низкий

3.7 Low

CVSS3