CVE-2015-9231

HIGHNVD 7.57.5
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to NVD's CVSS score.

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2022-05-17. NVD baseline CVSS 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, NVD CVSS v3

Also known asEUVD-2015-9084 (ENISA EUVD) · GHSA-32xm-x7pr-x3m2 (GitHub Security Advisories)Source: ENISA EUVD

7.5EG
EchelonGraph verdictPlan mitigationThe upstream fix is not in a release yet: until the release ships, restrict network exposure of the affected system or apply the vendor's mitigation on your normal schedule, then apply it (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 2.2%CVSS: 7.5Exploit: None knownExposed services: Not assessed

An upstream fix is merged but not yet released — mitigate (WAF / firewall / segmentation) until the release ships, then apply it.

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.

CVSS v3
7.5
EG Score
7.5HIGHmedium confidence
EG Risk
35
EG Risk 35/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity75% × 45%
Impact severity (EG Severity): CVSS 7.5 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation2.2% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's BOD 26-04 default: no one has published Automatable for this CVE, and CISA treats it as “no” for a CVE not in KEV.
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).
Exploitation none (no CISA value, KEV listing or exploit code on record) · Automatable no (CISA's BOD 26-04 default) · Technical impact total (CISA's BOD 26-04 default). EchelonGraph holds no SSVC assessment of this CVE from CISA: none of these inputs is from Vulnrichment. EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: An upstream fix is merged but not yet in a tagged release. Until the release ships, restrict network exposure of the affected system or apply the vendor's mitigation on your normal schedule, then apply it.
EPSS PROB
2.2%
EPSS %ILE
83rd
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (7.5): severity, escalated by confirmed exploitation. This CVE's 7.5 is its impact severity (EG Severity), not escalated.

EG Severity
7.5 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
2.2% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-11-11). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at low or medium mission impact; Track* at high (mission-essential systems).CISA BOD 26-04: 14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.No released fix is confirmed on this page, but CISA's timeline does not wait for a fix's release: it starts when an agency identifies the flaw on an asset and updates the CDM Agency and Federal Dashboard, and the directive counts patching, decommissioning the system or another action as remediation. Until a fixed release is applied, mitigate as this page's verdict says. In the directive's words, “Fix on system upgrade” means that, “unless conditions change”, the vulnerability “should be remediated the next time the vulnerable asset receives a scheduled major upgrade or rebuild”: its timelines are “dynamic as facts change”, and a KEV listing shortens them.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Track* at high (mission-essential systems).

An upstream fix is merged but not yet in a tagged release. Until the release ships, restrict network exposure of the affected system or apply the vendor's mitigation on your normal schedule, then apply it.

Exploitation none (no CISA value, KEV listing or exploit code on record) · Automatable no (CISA's BOD 26-04 default) · Technical impact total (CISA's BOD 26-04 default). EchelonGraph holds no SSVC assessment of this CVE from CISA: none of these inputs is from Vulnrichment. EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

No released fix is confirmed on this page, but CISA's timeline does not wait for a fix's release: it starts when an agency identifies the flaw on an asset and updates the CDM Agency and Federal Dashboard, and the directive counts patching, decommissioning the system or another action as remediation. Until a fixed release is applied, mitigate as this page's verdict says. In the directive's words, “Fix on system upgrade” means that, “unless conditions change”, the vulnerability “should be remediated the next time the vulnerable asset receives a scheduled major upgrade or rebuild”: its timelines are “dynamic as facts change”, and a KEV listing shortens them.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA's BOD 26-04 default) · Technical impact total (CISA's BOD 26-04 default). Where an input reads “CISA's BOD 26-04 default”, no one has published it for this CVE, and CISA's implementation guidance says: “If “Automatable” and “Technical Impact” information items about a CVE ID are not available and the CVE ID is not in the KEV Catalog, CISA will treat its values as “no” and “total,” respectively, until CISA or a third party provides metadata about the CVE ID. CISA will always provide the Vulnrichment data for a CVE ID listed in the KEV Catalog.” Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

September 20, 2017

Last Modified

June 17, 2026

Advisory Details (8)

Auto-updated Nov 5, 2026
Upstream fix merged — awaiting tagged release. Sources: github_commit.
GitHub commit

commit e4eb1063529d (gnachman/iTerm2)

Fix landed in gnachman/iTerm2 commit e4eb1063529d — awaiting tagged release

https://github.com/gnachman/iTerm2/commit/e4eb1063529deb575b75b396138d41554428d522
GitHub commit

commit 33ccaf61e34e (gnachman/iTerm2)

Fix landed in gnachman/iTerm2 commit 33ccaf61e34e — awaiting tagged release

https://github.com/gnachman/iTerm2/commit/33ccaf61e34ef32ffc9d6b2be5dd218f6bb55f51
Web page

iTerm2: Please disable 'Perform DNS lookups to check if URLs are valid' | Hacker News

https://news.ycombinator.com/item?id=15286956
Web page

dnslookupissue · Wiki · George Nachman / iterm2 · GitLab

https://gitlab.com/gnachman/iterm2/wikis/dnslookupissue
Web page

Post-mortem for DNS lookups issue (#6068) · Issues · George Nachman / iterm2 · GitLab

https://gitlab.com/gnachman/iterm2/issues/6068
Web page

Please disable 'Perform DNS lookups to check if URLs are valid?' by default (#6050) · Issues · George Nachman / iterm2 · GitLab

https://gitlab.com/gnachman/iterm2/issues/6050
Web page

undesirable domain lookup behavior (#5303) · Issues · George Nachman / iterm2 · GitLab

https://gitlab.com/gnachman/iterm2/issues/5303
Web page

Smart selection is issuing dns requests (#3688) · Issues · George Nachman / iterm2 · GitLab

https://gitlab.com/gnachman/iterm2/issues/3688

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 8× in last 7d / 33× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed its CVE.org record (CNA or CISA ADP). An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). "EchelonGraph re-scored" is our own recompute of this CVE's score, not an update from a source, and is not counted in the refreshes above. Most recent first.

Showing the most recent 100 of 196 rows on record for this CVE, as 97 entries (3 repeats merged).

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 3 repeat rows among the latest 100 are merged into the row they repeat. The 96 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-12 16:27 UTCEPSS rescoreEPSS 2.2% · 83rd percentile
  2. 2026-11-12 07:04 UTCEchelonGraph re-scored
  3. 2026-11-12 07:04 UTCGHSA enrichmentGHSA-32xm-x7pr-x3m2 · GitHub severity HIGH · GitHub CVSS 7.5
  4. 2026-11-11 16:28 UTCEPSS rescoreEPSS 2.2% · 82nd percentile
  5. 2026-11-10 16:30 UTCEPSS rescoreEPSS 2.2% · 82nd percentile
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  10. 2026-11-05 16:27 UTCEPSS rescoreEPSS 2.2% · 82nd percentile
  11. 2026-11-05 08:33 UTCEchelonGraph re-scored
  12. 2026-11-05 08:33 UTCGHSA enrichmentGHSA-32xm-x7pr-x3m2 · GitHub severity HIGH · GitHub CVSS 7.5
  13. 2026-11-04 16:27 UTCEPSS rescoreEPSS 2.2% · 82nd percentile
  14. 2026-11-03 16:32 UTCEPSS rescoreEPSS 2.2% · 82nd percentile
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  19. 2026-10-29 10:03 UTCEchelonGraph re-scored
  20. 2026-10-29 10:03 UTCGHSA enrichmentGHSA-32xm-x7pr-x3m2 · GitHub severity HIGH · GitHub CVSS 7.5
  21. 2026-10-28 16:26 UTCEPSS rescoreEPSS 2.2% · 82nd percentile
  22. 2026-10-27 16:26 UTCEPSS rescoreEPSS 2.2% · 82nd percentile
  23. 2026-10-26 16:26 UTCEPSS rescoreEPSS 2.2% · 82nd percentile
  24. 2026-10-25 19:51 UTCEchelonGraph re-scored
  25. 2026-10-25 16:26 UTCEPSS rescoreEPSS 2.2% · 82nd percentile
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  1. 2026-10-24 16:27 UTCEPSS rescoreEPSS 2.2% · 82nd percentile
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  3. 2026-10-22 16:27 UTCEPSS rescoreEPSS 2.2% · 82nd percentile
  4. 2026-10-22 08:45 UTCEchelonGraph re-scored
  5. 2026-10-22 08:45 UTCGHSA enrichmentGHSA-32xm-x7pr-x3m2 · GitHub severity HIGH · GitHub CVSS 7.5
  6. 2026-10-21 16:26 UTCEPSS rescoreEPSS 2.2% · 82nd percentile
  7. 2026-10-20 16:26 UTCEPSS rescoreEPSS 2.2% · 82nd percentile
  8. 2026-10-19 16:26 UTCEPSS rescoreEPSS 2.2% · 82nd percentile
  9. 2026-10-18 16:26 UTCEPSS rescoreEPSS 2.2% · 82nd percentile
  10. 2026-10-18 10:57 UTCEchelonGraph re-scored
  11. 2026-10-17 16:26 UTCEPSS rescoreEPSS 2.2% · 82nd percentile
  12. 2026-10-16 16:27 UTCEPSS rescoreEPSS 2.2% · 82nd percentile
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  15. 2026-10-13 16:26 UTCEPSS rescoreEPSS 2.2% · 82nd percentile
  16. 2026-10-12 20:48 UTCEchelonGraph re-scored
  17. 2026-10-12 16:27 UTCEPSS rescoreEPSS 2.2% · 82nd percentile
  18. 2026-10-12 01:11 UTCEchelonGraph re-scored
  19. 2026-10-11 13:40 UTCEPSS rescoreEPSS 2.2% · 82nd percentile
  20. 2026-10-10 19:54 UTCEPSS rescoreEPSS 2.2% · 82nd percentile
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  29. 2026-09-30 09:08 UTCEchelonGraph re-scored
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Frequently asked(5)

What is CVE-2015-9231?
CVE-2015-9231 is a high-severity vulnerability; its CVE record was published on September 20, 2017. 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…
When was the CVE record for CVE-2015-9231 published?
The CVE record for CVE-2015-9231 was published on September 20, 2017. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of June 17, 2026; the record at its source may have been updated since.
Is CVE-2015-9231 actively exploited?
CVE-2015-9231 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 2.2% probability of exploitation in the next 30 days (83rd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2015-9231?
CVE-2015-9231 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2015-9231?
An upstream fix for CVE-2015-9231 has been merged but is not yet in a tagged release. Until it ships, restrict network exposure of the affected system or apply the vendor's mitigation, then update to the release that contains the fix.

Dependency Blast Radius

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