4450743 matches found
CVE-2026-40014
An attacker that can send mail to a user can craft a message header that makes the IMAP THREAD command consume CPU disproportionate to the size of the message. When a mail client issues a THREAD command on the affected mailbox, this can cause degradation or denial of service for IMAP. Monitor...
EUVD-2026-67664
An attacker that can send mail to a user can craft a message header that makes the IMAP THREAD command consume CPU disproportionate to the size of the message. When a mail client issues a THREAD command on the affected mailbox, this can cause degradation or denial of service for IMAP. Monitor...
CVE-2026-40014
CVE-2026-40014 affects Open-Xchange Dovecot , where a crafted message header causes the IMAP THREAD command to consume CPU disproportionate to the size of the message. When a mail client issues a THREAD command on the affected mailbox, this results in degradation or denial of service for IMAP. Th...
CVE-2026-40013
CVE-2026-40013 affects the ManageSieve service in Open-Xchange Dovecot. An attacker with valid credentials can submit a Sieve script containing an extreme numeric literal , triggering an out-of-bounds write during script compilation. This leads to memory corruption and a crash of the ManageSieve ...
CVE-2026-40013
An attacker that has valid credentials can submit a Sieve script containing an extreme numeric literal, which causes an out-of-bounds write when the ManageSieve service compiles the script. This causes memory corruption and an observed crash of the ManageSieve process, resulting in denial of...
EUVD-2026-67663
An attacker that has valid credentials can submit a Sieve script containing an extreme numeric literal, which causes an out-of-bounds write when the ManageSieve service compiles the script. This causes memory corruption and an observed crash of the ManageSieve process, resulting in denial of...
CVE-2026-40013
An attacker that has valid credentials can submit a Sieve script containing an extreme numeric literal, which causes an out-of-bounds write when the ManageSieve service compiles the script. This causes memory corruption and an observed crash of the ManageSieve process, resulting in denial of...
CVE-2026-33607
An attacker that has valid credentials can use IMAP LIST command to consume CPU. This can cause degradation or denial of service for IMAP. Monitor system for abnormal CPU usage and kill the offending process and lock account. Alternatively install fixed version. No publicly available exploits are...
CVE-2026-33607
CVE-2026-33607 affects Open-Xchange Dovecot , where an authenticated attacker can abuse the IMAP LIST command to consume excessive CPU, causing degradation or denial of service for IMAP. The vulnerability requires low privileges (valid credentials) and is network-reachable with low complexity, ra...
CVE-2026-33607
An attacker that has valid credentials can use IMAP LIST command to consume CPU. This can cause degradation or denial of service for IMAP. Monitor system for abnormal CPU usage and kill the offending process and lock account. Alternatively install fixed version. No publicly available exploits are...
EUVD-2026-67662
An attacker that has valid credentials can use IMAP LIST command to consume CPU. This can cause degradation or denial of service for IMAP. Monitor system for abnormal CPU usage and kill the offending process and lock account. Alternatively install fixed version. No publicly available exploits are...
CVE-2026-33606
Mail content stored by a user can be crafted so that it is interpreted as dsync protocol commands when an administrator later runs dsync with the stream protocol, for example during a migration. Injected commands can modify mailbox state on the destination during migration or replication, includi...
EUVD-2026-67661
Mail content stored by a user can be crafted so that it is interpreted as dsync protocol commands when an administrator later runs dsync with the stream protocol, for example during a migration. Injected commands can modify mailbox state on the destination during migration or replication, includi...
CVE-2026-33606
Open-Xchange Dovecot is affected by a vulnerability in the dsync protocol's stream mode. Mail content stored by a user can be crafted so that it is interpreted as dsync protocol commands when an administrator later runs dsync with the stream protocol, for example during a migration or replication...
CVE-2026-33606
Mail content stored by a user can be crafted so that it is interpreted as dsync protocol commands when an administrator later runs dsync with the stream protocol, for example during a migration. Injected commands can modify mailbox state on the destination during migration or replication, includi...
CVE-2026-33605
An unauthenticated attacker can crash the ManageSieve login process by sending a small malformed command before authenticating. If running in high-security mode default for community releases, only the attacker's own connection is terminated. If running in high-performance mode default for Pro...
EUVD-2026-67660
An unauthenticated attacker can crash the ManageSieve login process by sending a small malformed command before authenticating. If running in high-security mode default for community releases, only the attacker's own connection is terminated. If running in high-performance mode default for Pro...
CVE-2026-33605
An unauthenticated attacker can crash the ManageSieve login process by sending a small malformed command before authenticating. If running in high-security mode default for community releases, only the attacker's own connection is terminated. If running in high-performance mode default for Pro...
CVE-2026-33605
CVE-2026-33605 affects the Open-Xchange (OX) ManageSieve service. An unauthenticated attacker can crash the managesieve-login process by sending a small malformed command before authenticating. The blast radius depends on the operating mode: in high-security mode (default for community releases),...
CVE-2026-33604
An attacker that can get Dovecot to relay a message, for example through Sieve redirect or submission relay, can use a crafted line ending in the message body to bypass the outbound protection that prevents message content from being interpreted as SMTP commands. A downstream mail server that...