CVE-2019-18928
cyrus-admin: Cyrus IMAP 2.5.x before 2.5.14 and 3.x before 3.0.12 allows privilegeescalation because an HTTP request may be interp...
CVE-2019-18928 is fixed in 12 products on 1 platform, first by cyrus-admin 3.0.12-1, released November 14, 2019. It is not reported as exploited. Patch Radar priority: High.
High
CVSS
9.8
Medium
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0239
84th percentile
Cyrus IMAP 2.5.x before 2.5.14 and 3.x before 3.0.12 allows privilegeescalation because an HTTP request may be interpreted in the authenticationcontext of an unrelated previous request that arrived over the sameconnection.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| cyrus-admin · Ubuntu 18.04.6 LTS (bionic) | 2.5.10-3ubuntu1.1+esm1 | cyrus-admin 2.5.10-3ubuntu1.1+esm1 | Aug 31, 2021 |
| cyrus-admin · Ubuntu 20.04 LTS (focal) | 3.0.12-1 | cyrus-admin 3.0.12-1 | Nov 14, 2019 |
| cyrus-admin · Ubuntu 24.10 (oracular) | 3.0.12-1 | cyrus-admin 3.0.12-1 | Jan 16, 2026 |
| cyrus-caldav · Ubuntu 18.04.6 LTS (bionic) | 2.5.10-3ubuntu1.1+esm1 | cyrus-caldav 2.5.10-3ubuntu1.1+esm1 | Aug 31, 2021 |
| cyrus-caldav · Ubuntu 20.04 LTS (focal) | 3.0.12-1 | cyrus-caldav 3.0.12-1 | Nov 14, 2019 |
| cyrus-caldav · Ubuntu 24.10 (oracular) | 3.0.12-1 | cyrus-caldav 3.0.12-1 | Jan 16, 2026 |
| cyrus-clients · Ubuntu 18.04.6 LTS (bionic) | 2.5.10-3ubuntu1.1+esm1 | cyrus-clients 2.5.10-3ubuntu1.1+esm1 | Aug 31, 2021 |
| cyrus-clients · Ubuntu 20.04 LTS (focal) | 3.0.12-1 | cyrus-clients 3.0.12-1 | Nov 14, 2019 |
| cyrus-clients · Ubuntu 24.10 (oracular) | 3.0.12-1 | cyrus-clients 3.0.12-1 | Jan 16, 2026 |
| cyrus-common · Ubuntu 18.04.6 LTS (bionic) | 2.5.10-3ubuntu1.1+esm1 | cyrus-common 2.5.10-3ubuntu1.1+esm1 | Aug 31, 2021 |
| cyrus-common · Ubuntu 20.04 LTS (focal) | 3.0.12-1 | cyrus-common 3.0.12-1 | Nov 14, 2019 |
| cyrus-common · Ubuntu 24.10 (oracular) | 3.0.12-1 | cyrus-common 3.0.12-1 | Jan 16, 2026 |
| cyrus-imapd · RHEL 8 | 0:3.0.7-19.el8 | RHSA-2020:4655 | Nov 4, 2020 |
| cyrus-imapd · Ubuntu 18.04.6 LTS (bionic) | 2.5.10-3ubuntu1.1+esm1 | cyrus-imapd 2.5.10-3ubuntu1.1+esm1 | Aug 31, 2021 |
| cyrus-imapd · Ubuntu 20.04 LTS (focal) | 3.0.12-1 | cyrus-imapd 3.0.12-1 | Nov 14, 2019 |
| cyrus-imapd · Ubuntu 24.10 (oracular) | 3.0.12-1 | cyrus-imapd 3.0.12-1 | Jan 16, 2026 |
| cyrus-imapd · ol 8 | 0:3.0.7-19.el8 | ELSA-2020-4655 | Nov 10, 2020 |
| cyrus-imapd-utils · RHEL 8 | 0:3.0.7-19.el8 | RHSA-2020:4655 | Nov 4, 2020 |
| cyrus-imapd-utils · ol 8 | 0:3.0.7-19.el8 | ELSA-2020-4655 | Nov 10, 2020 |
| cyrus-imapd-vzic · RHEL 8 | 0:3.0.7-19.el8 | RHSA-2020:4655 | Nov 4, 2020 |
| cyrus-imapd-vzic · ol 8 | 0:3.0.7-19.el8 | ELSA-2020-4655 | Nov 10, 2020 |
| cyrus-murder · Ubuntu 18.04.6 LTS (bionic) | 2.5.10-3ubuntu1.1+esm1 | cyrus-murder 2.5.10-3ubuntu1.1+esm1 | Aug 31, 2021 |
| cyrus-murder · Ubuntu 20.04 LTS (focal) | 3.0.12-1 | cyrus-murder 3.0.12-1 | Nov 14, 2019 |
| cyrus-murder · Ubuntu 24.10 (oracular) | 3.0.12-1 | cyrus-murder 3.0.12-1 | Jan 16, 2026 |
| cyrus-nntpd · Ubuntu 18.04.6 LTS (bionic) | 2.5.10-3ubuntu1.1+esm1 | cyrus-nntpd 2.5.10-3ubuntu1.1+esm1 | Aug 31, 2021 |
| cyrus-nntpd · Ubuntu 20.04 LTS (focal) | 3.0.12-1 | cyrus-nntpd 3.0.12-1 | Nov 14, 2019 |
| cyrus-nntpd · Ubuntu 24.10 (oracular) | 3.0.12-1 | cyrus-nntpd 3.0.12-1 | Jan 16, 2026 |
| cyrus-pop3d · Ubuntu 18.04.6 LTS (bionic) | 2.5.10-3ubuntu1.1+esm1 | cyrus-pop3d 2.5.10-3ubuntu1.1+esm1 | Aug 31, 2021 |
| cyrus-pop3d · Ubuntu 20.04 LTS (focal) | 3.0.12-1 | cyrus-pop3d 3.0.12-1 | Nov 14, 2019 |
| cyrus-pop3d · Ubuntu 24.10 (oracular) | 3.0.12-1 | cyrus-pop3d 3.0.12-1 | Jan 16, 2026 |
| cyrus-replication · Ubuntu 18.04.6 LTS (bionic) | 2.5.10-3ubuntu1.1+esm1 | cyrus-replication 2.5.10-3ubuntu1.1+esm1 | Aug 31, 2021 |
| cyrus-replication · Ubuntu 20.04 LTS (focal) | 3.0.12-1 | cyrus-replication 3.0.12-1 | Nov 14, 2019 |
| cyrus-replication · Ubuntu 24.10 (oracular) | 3.0.12-1 | cyrus-replication 3.0.12-1 | Jan 16, 2026 |
| libcyrus-imap-perl · Ubuntu 18.04.6 LTS (bionic) | 2.5.10-3ubuntu1.1+esm1 | libcyrus-imap-perl 2.5.10-3ubuntu1.1+esm1 | Aug 31, 2021 |
| libcyrus-imap-perl · Ubuntu 20.04 LTS (focal) | 3.0.12-1 | libcyrus-imap-perl 3.0.12-1 | Nov 14, 2019 |
| libcyrus-imap-perl · Ubuntu 24.10 (oracular) | 3.0.12-1 | libcyrus-imap-perl 3.0.12-1 | Jan 16, 2026 |
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