CVE-2015-9231

Exp

iTerm2 3.x before 3.1.1 allows remote attackers to discover passwords by reading DNS queries. A new (default) feature was added to iTerm2 version 3.0.0 (and unreleased 2.9.x versions such as 2.9.20150717) that resulted in a potential information disclosure. In an attempt to see whether the text under the cursor (or selected text) was a URL, the text would be sent as an unencrypted DNS query. This has the potential to result in passwords and other sensitive information being sent in cleartext without the user being aware.

Published: 2017-09-20 Last update: 2026-05-13 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2015-9231 is rated High Exploit Risk (70.5/100): CVSS High severity, with medium exploitation likelihood (EPSS 0.78%). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

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

Public exploit references (Exploit-DB) for CVE-2015-9231

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2015-9231

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 2026-02-18 0.91% 0.78% -0.13%
2 2025-04-06 0.96% 0.91% -0.05%
3 2025-03-30 — 0.96% —

Full EPSS history (11 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2015-9231

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.0 HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N 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:N)
Service keeps running; no real outage angle.
 3.9 3.6 [email protected]
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:P/I:N/A:N 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:N)
No availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2015-9231

Affected software / configurations for CVE-2015-9231

Vendor Product Version Raw CPE
iterm2 iterm2 2.9.20151111 cpe:2.3:a:iterm2:iterm2:2.9.20151111:*:*:*:*:*:*:*
iterm2 iterm2 2.9.20151229 cpe:2.3:a:iterm2:iterm2:2.9.20151229:*:*:*:*:*:*:*
iterm2 iterm2 2.9.20160102 cpe:2.3:a:iterm2:iterm2:2.9.20160102:*:*:*:*:*:*:*
iterm2 iterm2 2.9.20160113 cpe:2.3:a:iterm2:iterm2:2.9.20160113:*:*:*:*:*:*:*
iterm2 iterm2 2.9.20160206 cpe:2.3:a:iterm2:iterm2:2.9.20160206:*:*:*:*:*:*:*
iterm2 iterm2 2.9.20160313 cpe:2.3:a:iterm2:iterm2:2.9.20160313:*:*:*:*:*:*:*
iterm2 iterm2 2.9.20160422 cpe:2.3:a:iterm2:iterm2:2.9.20160422:*:*:*:*:*:*:*
iterm2 iterm2 2.9.20160426 cpe:2.3:a:iterm2:iterm2:2.9.20160426:*:*:*:*:*:*:*
iterm2 iterm2 2.9.20160510 cpe:2.3:a:iterm2:iterm2:2.9.20160510:*:*:*:*:*:*:*
iterm2 iterm2 2.9.20160523 cpe:2.3:a:iterm2:iterm2:2.9.20160523:*:*:*:*:*:*:*
iterm2 iterm2 3.0.0 cpe:2.3:a:iterm2:iterm2:3.0.0:*:*:*:*:*:*:*
iterm2 iterm2 3.0.0 cpe:2.3:a:iterm2:iterm2:3.0.0:preview:*:*:*:*:*:*
iterm2 iterm2 3.0.1 cpe:2.3:a:iterm2:iterm2:3.0.1:preview:*:*:*:*:*:*
iterm2 iterm2 3.0.2 cpe:2.3:a:iterm2:iterm2:3.0.2:*:*:*:*:*:*:*
iterm2 iterm2 3.0.3 cpe:2.3:a:iterm2:iterm2:3.0.3:*:*:*:*:*:*:*
iterm2 iterm2 3.0.4 cpe:2.3:a:iterm2:iterm2:3.0.4:*:*:*:*:*:*:*
iterm2 iterm2 3.0.5 cpe:2.3:a:iterm2:iterm2:3.0.5:*:*:*:*:*:*:*
iterm2 iterm2 3.0.6 cpe:2.3:a:iterm2:iterm2:3.0.6:*:*:*:*:*:*:*
iterm2 iterm2 3.0.7 cpe:2.3:a:iterm2:iterm2:3.0.7:*:*:*:*:*:*:*
iterm2 iterm2 3.0.8 cpe:2.3:a:iterm2:iterm2:3.0.8:*:*:*:*:*:*:*
iterm2 iterm2 3.0.9 cpe:2.3:a:iterm2:iterm2:3.0.9:*:*:*:*:*:*:*
iterm2 iterm2 3.0.10 cpe:2.3:a:iterm2:iterm2:3.0.10:*:*:*:*:*:*:*
iterm2 iterm2 3.0.11 cpe:2.3:a:iterm2:iterm2:3.0.11:*:*:*:*:*:*:*
iterm2 iterm2 3.0.12 cpe:2.3:a:iterm2:iterm2:3.0.12:*:*:*:*:*:*:*
iterm2 iterm2 3.0.13 cpe:2.3:a:iterm2:iterm2:3.0.13:*:*:*:*:*:*:*
iterm2 iterm2 3.0.14 cpe:2.3:a:iterm2:iterm2:3.0.14:*:*:*:*:*:*:*
iterm2 iterm2 3.0.15 cpe:2.3:a:iterm2:iterm2:3.0.15:*:*:*:*:*:*:*
iterm2 iterm2 3.0.20160531 cpe:2.3:a:iterm2:iterm2:3.0.20160531:*:*:*:*:*:*:*
iterm2 iterm2 3.1.0 cpe:2.3:a:iterm2:iterm2:3.1.0:*:*:*:*:*:*:*
iterm2 iterm2 3.1.0 cpe:2.3:a:iterm2:iterm2:3.1.0:beta:*:*:*:*:*:*
iterm2 iterm2 3.1.0 cpe:2.3:a:iterm2:iterm2:3.1.0:beta1:*:*:*:*:*:*
iterm2 iterm2 3.1.0 cpe:2.3:a:iterm2:iterm2:3.1.0:beta10:*:*:*:*:*:*
iterm2 iterm2 3.1.0 cpe:2.3:a:iterm2:iterm2:3.1.0:beta2:*:*:*:*:*:*
iterm2 iterm2 3.1.0 cpe:2.3:a:iterm2:iterm2:3.1.0:beta3:*:*:*:*:*:*
iterm2 iterm2 3.1.0 cpe:2.3:a:iterm2:iterm2:3.1.0:beta4:*:*:*:*:*:*
iterm2 iterm2 3.1.0 cpe:2.3:a:iterm2:iterm2:3.1.0:beta5:*:*:*:*:*:*
iterm2 iterm2 3.1.0 cpe:2.3:a:iterm2:iterm2:3.1.0:beta6:*:*:*:*:*:*
iterm2 iterm2 3.1.0 cpe:2.3:a:iterm2:iterm2:3.1.0:beta7:*:*:*:*:*:*
iterm2 iterm2 3.1.0 cpe:2.3:a:iterm2:iterm2:3.1.0:beta8:*:*:*:*:*:*
iterm2 iterm2 3.1.0 cpe:2.3:a:iterm2:iterm2:3.1.0:beta9:*:*:*:*:*:*

References for CVE-2015-9231

cvelogic Threat Intelligence