CVE records

Every CVE as the CVE Program publishes it, refreshed every ten minutes, with NVD's analysis, CISA's known-exploited status and a healthcare tag. Subscribers get the CVEs that match their own systems on My program, by email as they are published. Where the data comes from: sources.

Updated under an hour ago ()

What this means for you

This week: 5,435 CVEs published, 355 critical, and 7 newly confirmed exploited. Add your stack to see whether any of them hit you.

Published in the last 7 days
5,435
Show in the list
Critical, last 7 days
355
Show in the list
Healthcare-tagged, last 7 days
4
Show in the list
Known exploited (CISA KEV)
1,747
Show in the list

Showing CVEs that name the product open_xchange:ox_dovecot_pro. Show all products

24 CVEs, showing 1 to 24
CVESeverityTitlePublished
CVE-2026-27852High 7.5An attacker that can send mail to a user can craft a message whose headers contain a very large number of email addresses or MIME parameters, which causes excessive memory usage when the message is l…
Assigned by OX
Aug 28, 2026
CVE-2026-33263Medium 4.3When mail_max_userip_connections is set (default 10) and reached, submission-login can crash with epoll() panic caused by file descriptor handling issues.
Assigned by OX
Aug 28, 2026
CVE-2026-33604Medium 5.9An 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 p…
Assigned by OX
Aug 28, 2026
CVE-2026-33605High 7.5An unauthenticated attacker can crash the ManageSieve login process by sending a small malformed command before authenticating.
Assigned by OX
Aug 28, 2026
CVE-2026-33606Medium 4.8Mail 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.
Assigned by OX
Aug 28, 2026
CVE-2026-33607Medium 4.3An attacker that has valid credentials can use IMAP LIST command to consume CPU.
Assigned by OX
Aug 28, 2026
CVE-2026-40013Medium 4.3An 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.
Assigned by OX
Aug 28, 2026
CVE-2026-40014Medium 6.5An 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.
Assigned by OX
Aug 28, 2026
CVE-2026-40015Medium 4.3An attacker that has valid credentials can open many connections to the imap-hibernate service and send invalid commands, which can intermittently cause an out-of-bounds read and crash the process.
Assigned by OX
Aug 28, 2026
CVE-2026-40017Medium 6.5An attacker that can send mail to a user can craft a message header whose values are chosen to collide in an internal hash table, which makes the IMAP THREAD command consume CPU disproportionate to t…
Assigned by OX
Aug 28, 2026
CVE-2026-40018High 7.4None None None No publicly available exploits are known.
Assigned by OX
Aug 28, 2026
CVE-2026-40203Low 3.7When IMAP compression is enabled, the same compression state is reused across responses in a session, so response sizes depend on both attacker-supplied mail and other mail in the same mailbox.
Assigned by OX
Aug 28, 2026
CVE-2026-40204Low 3.1None None None No publicly available exploits are known.
Assigned by OX
Aug 28, 2026
CVE-2026-40205Medium 5.9An attacker that holds an OAuth2 token granting only part of the required scopes can authenticate, because when more than one scope is required in the configuration, the remote token validation paths…
Assigned by OX
Aug 28, 2026
CVE-2026-42007Critical 9.1An attacker that has valid credentials can use a Sieve script with the editheader extension to trigger a use-after-free in the mail editing code, and to write memory contents beyond the intended buff…
Assigned by OX
Aug 28, 2026
CVE-2026-42008Medium 4.3Forwarding information received from a host listed as a trusted proxy is not kept separate from Dovecot's own authentication fields, so a value sent by that host can be injected as an internal authen…
Assigned by OX
Aug 28, 2026
CVE-2026-42391High 7.5An unauthenticated attacker can send an IMAP ID command with a very large number of parameters before logging in, which causes memory and CPU usage to grow disproportionately.
Assigned by OX
Aug 28, 2026
CVE-2026-42392Medium 4.3An attacker that has valid credentials can send an invalid IMAP URLFETCH command, which causes uninitialized memory to be included in the error response returned to the client.
Assigned by OX
Aug 28, 2026
CVE-2026-42393Low 3.1The comparison used for the doveadm password and API key is not fully timing safe and can reveal the length of the configured secret.
Assigned by OX
Aug 28, 2026
CVE-2026-42395Medium 4.3A host listed as a trusted proxy can send forwarding information containing a NUL byte, which crashes the login process on the following login attempt.
Assigned by OX
Aug 28, 2026
CVE-2026-52681Low 3.1Sieve CPU resource usage is tracked in the compiled script, so an attacker that has valid credentials can reset the accounting by repeatedly changing the active script.
Assigned by OX
Aug 28, 2026
CVE-2026-52687Medium 6.5An attacker that has valid credentials can select a compression algorithm for the IMAP connection whose decompression state requires a large amount of memory, and open several such connections.
Assigned by OX
Aug 28, 2026
CVE-2026-73208High 7.4An attacker that holds a token intended for a different purpose can authenticate, because when an OAuth2 token response does not contain a scope claim, the audience claim is used in its place and che…
Assigned by OX
Aug 28, 2026
CVE-2026-73209Medium 6.5An attacker that has valid credentials can send crafted compressed data that causes the affected process to exhaust its stack and crash.
Assigned by OX
Aug 28, 2026

CVSS is the assigning CNA's score where it gives one, otherwise NVD's. The healthcare tag is a documented heuristic (a list of clinical and health IT vendors, and clinical terms in the description), not a classification. The CVE record is authoritative.

Your cookie choices
We use essential cookies to run this site, and, only with your consent, an advertising cookie from Google to measure whether our ads lead to sign-ups and subscriptions. See our for details.