CVE-2017-14230
In the mboxlist_do_find function in imap/mboxlist.c in Cyrus IMAP before 3.0.4, an off-by-one error in prefix calculation for the LIST command caused use of uninitialized memory, which might allow remote attackers to obtain sensitive information or…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.18%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
In the mboxlist_do_find function in imap/mboxlist.c in Cyrus IMAP before 3.0.4, an off-by-one error in prefix calculation for the LIST command caused use of uninitialized memory, which might allow remote attackers to obtain sensitive information or cause a denial of service (daemon crash) via a 'LIST "" "Other Users"' command.
- CVSS 3.0
- 9.1 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
- EPSS
- 2.18% probability · 82th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-20
- Affected
- cyrus/imap
- Source
- cve@mitre.org
EPSS 2.2% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://github.com/cyrusimap/cyrus-imapd/commit/6bd33275368edfa71ae117de895488584678ac79Issue Tracking, Patch, Third Party Advisory
- https://github.com/cyrusimap/cyrus-imapd/issues/2132Issue Tracking, Third Party Advisory
- https://lists.andrew.cmu.edu/pipermail/cyrus-announce/2017-September/000145.htmlThird Party Advisory
- https://www.cyrusimap.org/imap/download/release-notes/3.0/x/3.0.4.htmlRelease Notes, Third Party Advisory
- https://github.com/cyrusimap/cyrus-imapd/commit/6bd33275368edfa71ae117de895488584678ac79Issue Tracking, Patch, Third Party Advisory
- https://github.com/cyrusimap/cyrus-imapd/issues/2132Issue Tracking, Third Party Advisory
- https://lists.andrew.cmu.edu/pipermail/cyrus-announce/2017-September/000145.htmlThird Party Advisory
- https://www.cyrusimap.org/imap/download/release-notes/3.0/x/3.0.4.htmlRelease Notes, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.