The vulnerability of Dovecot and OX Dovecot Pro mail servers, related to uncontrolled resource consumption, allows attackers to cause service failures.

The vulnerability of Dovecot and OX Dovecot Pro mail servers is related to an uncontrolled consumption of resources. Exploiting this vulnerability can allow a malicious actor to cause service failures...

The vulnerability of Dovecot and OX Dovecot Pro mail servers, related to uncontrolled resource consumption, allows attackers to cause service failures.

The vulnerability of Dovecot and OX Dovecot Pro mail servers is related to an uncontrolled consumption of resources. Exploiting this vulnerability can allow a malicious actor to cause service failures...

CVE-2026-41259

Mastodon is a free, open-source social network server based on ActivityPub. Prior to v4.5.9, v4.4.16, and v4.3.22, Mastodon allows restricting new user sign-up based on e-mail domain names, and performs basic validation on e-mail addresses, but fails to restrict characters that are interpreted...

📄 Dovecot 3.1.0 Authentication Bypass / User Enumeration

This Metasploit auxiliary module targets an LDAP injection vulnerability in Dovecot mail servers that can lead to authentication bypass or user enumeration via IMAP/POP3. Version 3.1.0 is affected...

CVE-2026-4371

A malicious mail server could send malformed strings with negative lengths, causing the parser to read memory outside the buffer. If a mail server or connection to a mail server were compromised, an attacker could cause the parser to malfunction, potentially crashing Thunderbird or leaking...

CVE-2026-4371

A malicious mail server could send malformed strings with negative lengths, causing the parser to read memory outside the buffer. If a mail server or connection to a mail server were compromised, an attacker could cause the parser to malfunction, potentially crashing Thunderbird or leaking...

CVE-2026-23609 GFI MailEssentials AI < 22.4 General Settings Perimeter SMTP Servers Description Stored XSS

GFI MailEssentials AI versions prior to 22.4 contain a stored cross-site scripting vulnerability in the Perimeter SMTP Servers configuration page. An authenticated user can supply HTML/JavaScript in the ctl00$ContentPlaceHolder1$pv3$txtDescription parameter to...

Astra Linux – Vulnerability in Python 3.11

When an address list is folded, and the separating comma ends up on a folded line that needs to be encoded using Unicode, then the separator itself must also be encoded using Unicode. The expected behavior is that the separating comma remains a plain comma. However, this can lead to the address...

CVE-1999-0284

Denial of service to NT mail servers including Ipswitch, Mdaemon, and Exchange through a buffer overflow in the SMTP HELO command...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: python3 (UTSA-2025-992144)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-992144 advisory. 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...

EUVD-2006-6391

Malware in sbrugna...

EUVD-1999-0284

Malware in sbrugna...

EUVD-2025-5930

Malicious code in bioql PyPI...

BIT-LIBPYTHON-2025-1795 Mishandling of comma during folding and unicode-encoding of email headers

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...

BIT-PYTHON-2025-1795 Mishandling of comma during folding and unicode-encoding of email headers

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...

BIT-PYTHON-MIN-2025-1795 Mishandling of comma during folding and unicode-encoding of email headers

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...

How to Create a Scan in Perl to Identify Vulnerable POP3 Servers

This paper, written in Brazilian Portuguese, explains how to create a Perl script to identify vulnerable POP3 servers. In the context of application security, the author provides mitigation recommendations...

PT-2025-13020 · Exim +3 · Exim +3

Name of the Vulnerable Software and Affected Versions: Exim versions 4.96 through 4.98.1 Description: A use-after-free in Exim could allow users with command-line access to escalate privileges. This issue affects nearly 50% of mail servers worldwide, posing a significant risk to system integrity...

SUSE CVE-2025-1795

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...

CVE-2025-1795

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...