CVE-2021-32056

MEDIUM
Published May 10, 20215y ago · Modified Jun 17, 20262w ago
4.3 CVSS 3.1
Medium
Find Similar
Published May 10, 2021 5y ago
Last Modified Jun 17, 2026 2w ago

Description

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 Details

Base Score
4.3
Exploitability
2.8
Impact
1.4
Vector string
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability Low

Threat Intelligence

No active exploitation signals — not in CISA KEV and no EPSS score yet.

Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-732

Affected Products 4

VendorProductVersionRange
cyrusimap* <3.2.7
cyrusimap*≥3.3.0  –  <3.4.1
fedoraprojectfedora34any
fedoraprojectfedora35any

References 6

  • cyrus.topicbox.com https://cyrus.topicbox.com/groups/announce/T056901c106ecfce3/cyrus-imap-3-4-1-released
    PatchRelease NotesVendor Advisory
  • cyrus.topicbox.com https://cyrus.topicbox.com/groups/announce/T126392718bc29d6b/cyrus-imap-3-2-7-released
    PatchRelease NotesVendor Advisory
  • lists.fedoraproject.org https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6HEO3RURJW6NLIXS7NK5PVU6MGHC4SCM/
  • lists.fedoraproject.org https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WJZB45QBUN7CZFGOWCZYUYACNBTX7LVS/
  • cyrusimap.org https://www.cyrusimap.org/imap/download/release-notes/3.2/x/3.2.7.html
    PatchRelease NotesVendor Advisory
  • cyrusimap.org https://www.cyrusimap.org/imap/download/release-notes/3.4/x/3.4.1.html
    PatchRelease NotesVendor Advisory

Remediation

  • cyrus.topicbox.com https://cyrus.topicbox.com/groups/announce/T056901c106ecfce3/cyrus-imap-3-4-1-released
    PatchRelease NotesVendor Advisory
  • cyrus.topicbox.com https://cyrus.topicbox.com/groups/announce/T126392718bc29d6b/cyrus-imap-3-2-7-released
    PatchRelease NotesVendor Advisory
  • cyrusimap.org https://www.cyrusimap.org/imap/download/release-notes/3.2/x/3.2.7.html
    PatchRelease NotesVendor Advisory
  • cyrusimap.org https://www.cyrusimap.org/imap/download/release-notes/3.4/x/3.4.1.html
    PatchRelease NotesVendor Advisory