CVE-2017-12843

Name: CVE-2017-12843
Creator: NVD / NIST
Published: 2017-08-22T14:29:00.207+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.23%

Last modified Jun 17, 2026

CVE-2017-12843 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 1.23% chance of exploitation in the next 30 days.

Description

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.

Metrics

EPSS Probability

1.23%

65.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-20

Affected Software

Vendor	Product	Versions
Cyrusimap	Cyrus Imap	<= 3.0.2
Fedoraproject	Fedora	26

References

https://github.com/cyrusimap/cyrus-imapd/commit/53c4137bd924b954432c6c59da7572c4c5ffa901Third Party Advisory
https://github.com/cyrusimap/cyrus-imapd/commit/5edadcfb83bf27107578830801817f9e6d0ad941Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6M32R5QPCCNT57BVH3NPV5WVJFSTDP7Q/
https://www.cyrusimap.org/imap/download/release-notes/3.0/x/3.0.3.htmlRelease Notes, Vendor Advisory
https://github.com/cyrusimap/cyrus-imapd/commit/53c4137bd924b954432c6c59da7572c4c5ffa901Third Party Advisory
https://github.com/cyrusimap/cyrus-imapd/commit/5edadcfb83bf27107578830801817f9e6d0ad941Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6M32R5QPCCNT57BVH3NPV5WVJFSTDP7Q/
https://www.cyrusimap.org/imap/download/release-notes/3.0/x/3.0.3.htmlRelease Notes, Vendor Advisory

Timeline

Published: Aug 22, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-12843?

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.

How severe is CVE-2017-12843?

Severity scoring for CVE-2017-12843 is pending analysis. The EPSS model estimates a 1.23% probability of exploitation in the next 30 days.

How do I fix CVE-2017-12843?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2017-12843?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST