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 cause a denial of service (daemon crash) via a 'LIST "" "Other Users"' command.

Published: 2017-09-10 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2017-14230 is rated High Risk (65.6/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 2.18%). EPSS rose +1.24% over the last day, indicating growing attacker interest. High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2017-14230

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.94% 2.18% +1.24%
2 2025-03-30 3.58% 0.94% -2.65%
3 2025-03-29 — 3.58% —

Full EPSS history (15 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2017-14230

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.1 3.0 CRITICAL
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 5.2 [email protected]
6.4 2.0 MEDIUM
AV:N/AC:L/Au:N/C:P/I:N/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 4.9 [email protected]

Weakness enumeration for CVE-2017-14230

OS Trackers for CVE-2017-14230

vendor priority summary link
debian unimportant CVE-2017-14230 unimportant priority: Debian including 1 source packages (cyrus-imapd), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2017-14230
redhat medium — https://access.redhat.com/security/cve/CVE-2017-14230
suse medium — https://www.suse.com/security/cve/CVE-2017-14230/
ubuntu medium CVE-2017-14230 medium priority: Ubuntu including 2 source packages (cyrus-imapd, cyrus-imapd-2.4), 14 status rows across 7 suites (artful, bionic, cosmic, trusty, upstream, xenial, zesty): DNE 7, not-affected 5, ignored 2. https://ubuntu.com/security/CVE-2017-14230

Affected software / configurations for CVE-2017-14230

Vendor Product Version Raw CPE
cyrus imap <= 3.0.3 cpe:2.3:a:cyrus:imap:*:*:*:*:*:*:*:*

References for CVE-2017-14230

cvelogic Threat Intelligence