CVE Tools
Track your stack

Open-xchange

249 CVEs tracked since 2013. Since Sep 2013, none of them reached CISA KEV.

Open-xchange CVEs per month

Sep 2013 to Oct 2026. Point at a month, or focus the strip and use the arrow keys.
Open-xchange CVEs per month, with the share now in CISA KEV
MonthCVEsIn CISA KEV
2013-09170
2013-1020
2013-1110
2013-120
2014-0150
2014-020
2014-0310
2014-0430
2014-051 or fewer
2014-061 or fewer
2014-071 or fewer
2014-080
2014-0920
2014-101 or fewer
2014-1110
2014-1220
2015-0120
2015-0210
2015-030
2015-040
2015-050
2015-061 or fewer
2015-070
2015-080
2015-0910
2015-100
2015-1110
2015-120
2016-010
2016-020
2016-030
2016-040
2016-050
2016-060
2016-070
2016-08no snapshot
2016-090
2016-100
2016-11no snapshot
2016-12240
2017-01no snapshot
2017-021 or fewer
2017-031 or fewer
2017-04no snapshot
2017-051 or fewer
2017-06no snapshot
2017-071 or fewer
2017-082 or fewer
2017-091 or fewer
2017-101 or fewer
2017-11no snapshot
2017-121 or fewer
2018-012 or fewer
2018-021 or fewer
2018-032 or fewer
2018-04no snapshot
2018-05no snapshot
2018-0670
2018-072 or fewer
2018-082 or fewer
2018-0960
2018-102 or fewer
2018-11no snapshot
2018-122 or fewer
2019-01no snapshot
2019-021 or fewer
2019-03no snapshot
2019-04no snapshot
2019-05200
2019-06no snapshot
2019-072 or fewer
2019-0830
2019-092 or fewer
2019-1030
2019-112 or fewer
2019-122 or fewer
2020-0170
2020-022 or fewer
2020-032 or fewer
2020-04no snapshot
2020-05no snapshot
2020-0660
2020-07no snapshot
2020-0840
2020-091 or fewer
2020-1030
2020-111 or fewer
2020-122 or fewer
2021-01120
2021-022 or fewer
2021-03no snapshot
2021-0440
2021-052 or fewer
2021-062 or fewer
2021-0770
2021-083 or fewer
2021-092 or fewer
2021-102 or fewer
2021-11130
2021-122 or fewer
2022-012 or fewer
2022-022 or fewer
2022-0360
2022-043 or fewer
2022-053 or fewer
2022-063 or fewer
2022-0750
2022-083 or fewer
2022-093 or fewer
2022-102 or fewer
2022-113 or fewer
2022-12100
2023-013 or fewer
2023-023 or fewer
2023-03no snapshot
2023-0450
2023-0590
2023-0690
2023-073 or fewer
2023-08140
2023-093 or fewer
2023-104 or fewer
2023-11100
2023-124 or fewer
2024-0160
2024-0260
2024-034 or fewer
2024-044 or fewer
2024-055 or fewer
2024-064 or fewer
2024-074 or fewer
2024-084 or fewer
2024-093 or fewer
2024-104 or fewer
2024-114 or fewer
2024-123 or fewer
2025-014 or fewer
2025-023 or fewer
2025-035 or fewer
2025-044 or fewer
2025-054 or fewer
2025-064 or fewer
2025-075 or fewer
2025-084 or fewer
2025-094 or fewer
2025-104 or fewer
2025-114 or fewer
2025-125 or fewer
2026-015 or fewer
2026-025 or fewer
2026-03110
2026-046 or fewer
2026-057 or fewer
2026-067 or fewer
2026-077 or fewer
2026-088 or fewer
2026-099 or fewer
2026-106 or fewer

Products

The products that kept showing up in Open-xchange's monthly top three, with their CVEs summed over those months.

  1. Open-xchange Appsuite14428 months
  2. Ox App Suite436 months
  3. Open-xchange Appsuite Backend132 months
  4. Open-xchange Server122 months
  5. Dovecot111 month
  6. Ox Guard105 months
  7. Open-xchange Appsuite Frontend61 month
  8. Open-xchange Appsuite Office41 month
  9. Pdns41 month
  10. Open-xchange Documents31 month

Latest CVEs

The 15 most recently published vulnerabilities affecting Open-xchange.

  1. CVE-2026-42006An attacker can cause uncontrolled memory usage with excessive bracing over IMAP. The fix in CVE-2026-27857 was incomplete, only blocking one way of doing this, so there was still another way left ...4.3
  2. CVE-2026-40020Attacker can use the IMAP SETACL command to inject the anyone permission to user's dovecot-acl file even if imap_acl_allow_anyone=no. This causes folders to be spammed to all users. The impact is l...3.1
  3. CVE-2026-40016Attacker can upload a malicious Sieve script over ManageSieve service (or locally) to bypass configured CPU time limits for Sieve up to 130 times of the configured limit. Attacker can use this to d...5.3
  4. CVE-2026-33603Attacker can use a specially crafted base64 exchange between Dovecot and Client to fake SCRAM TLS channel binding. This requires that the attacker is able to position itself between Dovecot and the...6.8
  5. CVE-2026-27851When safe filter is used with variable expansion, all following pipelines on the same string are incorrectly interpreted as safe too, enabling unsafe data to be unescaped. This can enable SQL / LDA...7.4
  6. CVE-2026-27859A mail message containing excessive amount of RFC 2231 MIME parameters causes LMTP to use too much CPU. A suitably formatted mail message causes mail delivery process to consume large amounts of CP...5.3
  7. CVE-2026-27860If auth_username_chars is empty, it is possible to inject arbitrary LDAP filter to Dovecot's LDAP authentication. This leads to potentially bypassing restrictions and allows probing of LDAP structu...3.7
  8. CVE-2026-27858Attacker can send a specifically crafted message before authentication that causes managesieve to allocate large amount of memory. Attacker can force managesieve-login to be unavailable by repeat...7.5
  9. CVE-2026-27857Sending "NOOP (((...)))" command with 4000 parenthesis open+close results in ~1MB extra memory usage. Longer commands will result in client disconnection. This 1 MB can be left allocated for longer...4.3
  10. CVE-2026-27856Doveadm credentials are verified using direct comparison which is susceptible to timing oracle attack. An attacker can use this to determine the configured credentials. Figuring out the credential ...7.4
  11. CVE-2026-24031Dovecot SQL based authentication can be bypassed when auth_username_chars is cleared by admin. This vulnerability allows bypassing authentication for any user and user enumeration. Do not clear aut...7.7
  12. CVE-2026-27855Dovecot OTP authentication is vulnerable to replay attack under specific conditions. If auth cache is enabled, and username is altered in passdb, then OTP credentials can be cached so that same OTP...6.8
  13. CVE-2026-0394When dovecot has been configured to use per-domain passwd files, and they are placed one path component above /etc, or slash has been added to allowed characters, path traversal can happen if the d...5.3
  14. CVE-2025-59032ManageSieve AUTHENTICATE command crashes when using literal as SASL initial response. This can be used to crash ManageSieve service repeatedly, making it unavailable for other users. Control access...7.5
  15. CVE-2025-59031Dovecot has provided a script to use for attachment to text conversion. This script unsafely handles zip-style attachments. Attacker can use specially crafted OOXML documents to cause unintended fi...4.3

The record

Peak rank
#8 in Sep 2013
Busiest month shown
Dec 2016, 24 CVEs
Months with a KEV entry
0 since Sep 2013
Monthly snapshots
38 since 2013
Open-xchange's full record, month by month