Priority MEDIUM 52
The CalDAV feature in httpd in Cyrus IMAP 2.5.x through 2.5.12 and 3.0.x through 3.0.9 allows remote attackers to execute arbitrary code via a crafted HTTP PUT operation for an event with a long iCalendar property name.
CVSS 3.1CRITICAL 9.8· Network · No auth · No interaction · EPSS 0.07622 · Published 2019-06-03 · Fixed CWE-787
Priority MEDIUM 47
Cyrus IMAP 2.5.x before 2.5.14 and 3.x before 3.0.12 allows privilege escalation because an HTTP request may be interpreted in the authentication context of an unrelated previous request that arrived over the same connec…
CVSS 3.1CRITICAL 9.8· Network · No auth · No interaction · EPSS 0.02392 · Published 2019-11-15 · Fixed
Priority MEDIUM 43
In the mboxlist_do_find function in imap/mboxlist.c in Cyrus IMAP before 3.0.4, an off-by-one error in prefix calculation for the LIST command caused use of uninitialized memory, which might allow remote attackers to obt…
CVSS 3.0CRITICAL 9.1· Network · No auth · No interaction · EPSS 0.02177 · Published 2017-09-10 · No fix listed CWE-20
Priority LOW 39
Integer overflow in the index_urlfetch function in imap/index.c in Cyrus IMAP 2.3.19, 2.4.18, and 2.5.6 allows remote attackers to have unspecified impact via vectors related to urlfetch range checks and the start_octet…
CVSS 2.0HIGH 7.5· Network · No auth · Interaction — · EPSS 0.03261 · Published 2015-12-03 · No fix listed CWE-189
Priority LOW 39
The index_urlfetch function in index.c in Cyrus IMAP 2.3.x before 2.3.19, 2.4.x before 2.4.18, 2.5.x before 2.5.4 allows remote attackers to obtain sensitive information or possibly have unspecified other impact via vect…
CVSS 2.0HIGH 7.5· Network · No auth · Interaction — · EPSS 0.03261 · Published 2015-12-03 · Will not fix CWE-119
Priority LOW 38
Cyrus IMAP before 3.4.2 allows remote attackers to cause a denial of service (multiple-minute daemon hang) via input that is mishandled during hash-table interaction.
CVSS 3.1HIGH 7.5· Network · No auth · No interaction · EPSS 0.03095 · Published 2021-09-01 · Partial fix CWE-407
Priority LOW 38
Integer overflow in the index_urlfetch function in imap/index.c in Cyrus IMAP 2.3.19, 2.4.18, and 2.5.6 allows remote attackers to have unspecified impact via vectors related to urlfetch range checks and the section_offs…
CVSS 2.0HIGH 7.5· Network · No auth · Interaction — · EPSS 0.02753 · Published 2015-12-03 · No fix listed CWE-189
Priority LOW 32
An issue was discovered in Cyrus IMAP before 2.5.15, 3.0.x before 3.0.13, and 3.1.x through 3.1.8.
CVSS 3.1MEDIUM 6.5· Network · Low privileges · No interaction · EPSS 0.01655 · Published 2019-12-16 · Partial fix CWE-269
Priority LOW 31
An issue was discovered in Cyrus IMAP before 3.12.4.
CVSS 3.1HIGH 7.1· Network · Low privileges · No interaction · EPSS 0.00259 · Published 2026-09-09 · Partial fix · 3.8.8, 3.10.4 +1 CWE-415
Priority LOW 28
An issue was discovered in Cyrus IMAP before 3.12.4.
CVSS 3.1MEDIUM 6.5· Network · Low privileges · No interaction · EPSS 0.00224 · Published 2026-09-09 · Partial fix · 3.8.8, 3.10.4 +1 CWE-125
Priority LOW 23
Cyrus IMAP before 3.2.7, and 3.3.x and 3.4.x before 3.4.1, allows remote authenticated users to bypass intended access restrictions on server annotations and consequently cause replication to stall.
CVSS 3.1MEDIUM 4.3· Network · Low privileges · No interaction · EPSS 0.017 · Published 2021-05-10 · Will not fix CWE-732
Priority LOW 22
An issue was discovered in Cyrus IMAP before 3.12.4.
CVSS 3.1MEDIUM 5.0· Network · Low privileges · No interaction · EPSS 0.0019 · Published 2026-09-09 · Partial fix · 3.8.8, 3.10.4 +1 CWE-863
Priority LOW 19
An issue was discovered in Cyrus IMAP before 3.12.4.
CVSS 3.1MEDIUM 4.3· Network · Low privileges · No interaction · EPSS 0.00218 · Published 2026-09-09 · Partial fix · 3.8.8, 3.10.4 +1 CWE-497
Priority LOW 19
An issue was discovered in Cyrus IMAP before 3.12.4.
CVSS 3.1MEDIUM 4.3· Network · Low privileges · No interaction · EPSS 0.00204 · Published 2026-09-09 · Partial fix · 3.8.8, 3.10.4 +1 CWE-420