CVE-2017-12843
Cyrus IMAP before 3.0.3 allows remote authenticated users to write to arbitrary files via a...
Cyrus IMAP before 3.0.3 allows remote authenticated users to write to arbitrary files via a crafted (1) SYNCAPPLY, (2) SYNCGET or (3) SYNCRESTORE command.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- High
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
Cyrus IMAP before 3.0.3 allows remote authenticated users to write to arbitrary files via a crafted (1) SYNCAPPLY, (2) SYNCGET or (3) SYNCRESTORE command.
- Record
CVE-2017-12843- CVSS 3.0
- 6.5 Medium
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N - CVSS 2.0
- 4.0 Medium
AV:N/AC:L/Au:S/C:N/I:P/A:N - Weakness
- CWE-20
- Updated
- 2026-11-02
CVE List No score
Cyrus IMAP before 3.0.3 allows remote authenticated users to write to arbitrary files via a crafted (1) SYNCAPPLY, (2) SYNCGET or (3) SYNCRESTORE command.
- Record
CVE-2017-12843- Updated
- 2026-11-02
EUVDEUVD-2017-4380 No score
Cyrus IMAP before 3.0.3 allows remote authenticated users to write to arbitrary files via a crafted (1) SYNCAPPLY, (2) SYNCGET or (3) SYNCRESTORE command.
- Record
EUVD-2017-4380- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-7gjp-mccf-jrm5
Cyrus IMAP before 3.0.3 allows remote authenticated users to write to arbitrary files via a...
Cyrus IMAP before 3.0.3 allows remote authenticated users to write to arbitrary files via a crafted (1) SYNCAPPLY, (2) SYNCGET or (3) SYNCRESTORE command.
- Record
GHSA-7gjp-mccf-jrm5- CVSS 3.0
- 6.5 Medium
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N - Weakness
- CWE-20
- Updated
- 2026-11-02
OSV
Cyrus IMAP before 3.0.3 allows remote authenticated users to write to arbitrary files via a crafted (1) SYNCAPPLY, (2) SYNCGET or (3) SYNCRESTORE command.
- Record
CVE-2017-12843- CVSS 3.0
- 6.5 Medium
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N - Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2017-12843 is a medium vulnerability (CVSS 6.5) in Cyrusimap Cyrus Imap, published August 22, 2017. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.23%, the 68th percentile. No source names a fixed version.
References
github.com/cyrusimap/cyrus-imapd/commit/5edadcfb83bf27107578830801817f9e6d0ad941
cyrusimap.org/imap/download/release-notes/3.0/x/3.0.3.html
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6M32R5QPCCNT57BVH3NPV5WVJFSTDP7Q
nvd.nist.gov/vuln/detail/CVE-2017-12843