CVE-2023-46301

CRITICALNVD 9.89.8
EchelonGraph scoreMEDIUM confidence

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

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2023-10-22. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, NVD CVSS v3
Trending — 3 sources updated this weekElevated

Also known asEUVD-2023-50524 (ENISA EUVD) · GHSA-555p-hvwp-mh56 (GitHub Security Advisories)Source: ENISA EUVD

9.8EG
EchelonGraph verdictPlan mitigationNo release containing the referenced fix is confirmed: check the referenced fix and the vendor's advisory for a release that contains it; until one is applied, restrict network exposure of the affected system or apply the vendor's mitigation on your normal schedule at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • CISA's Vulnrichment rates exploitation as PoC; EchelonGraph holds no exploit-code reference for it
CISA-KEV: Not listedEPSS PROB: 1.3%CVSS: 9.8Exploit: No code on recordExposed services: Not assessed

A fix is referenced (a reference tagged "Patch", often a source commit), but no release containing it is confirmed — find the release that contains it; until it is applied, mitigate (WAF / firewall / segmentation).

iTerm2 before 3.4.20 allow (potentially remote) code execution because of mishandling of certain escape sequences related to upload.

CVSS v3
9.8
EG Score
9.8CRITICALmedium confidence
EG Risk
75
EG Risk 75/100

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)
Severity98% × 45%
Impact severity (EG Severity): CVSS 9.8 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation40% × 40%
EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low, Track* at medium and Attend at high mission impact.
Exploitation public PoC (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is referenced, but no release containing it is confirmed. Check the referenced fix and the vendor's advisory for a release that contains it; until one is applied, restrict network exposure of the affected system or apply the vendor's mitigation on your normal schedule at low or medium mission impact and sooner than that at high.
EPSS PROB
1.3%
EPSS %ILE
70th
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 (9.8): severity, escalated by confirmed exploitation. This CVE's 9.8 is its impact severity (EG Severity), not escalated.

EG Severity
9.8 CRITICALCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
1.3% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-11-01). 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, Track* at medium and Attend at high mission impact.CISA BOD 26-04: 3 days if the affected system is publicly exposed; 60 days 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.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, Track* at medium and Attend at high mission impact.

A fix is referenced, but no release containing it is confirmed. Check the referenced fix and the vendor's advisory for a release that contains it; until one is applied, restrict network exposure of the affected system or apply the vendor's mitigation on your normal schedule at low or medium mission impact and sooner than that at high.

Exploitation public PoC (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (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)3 days if the affected system is publicly exposed; 60 days 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.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). 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

October 22, 2023

Last Modified

June 17, 2026

Advisory Details (4)

Auto-updated Nov 1, 2026
Fix referenced — no release confirmed yet. Sources: github_commit.
Web pageMentions a patch (unverified)

iTerm2 - macOS Terminal Replacement

https://iterm2.com/news.html
GitHub commit

commit b2268b03b5f3 (gnachman/iTerm2)

Fix landed in gnachman/iTerm2 commit b2268b03b5f3 — awaiting tagged release

https://github.com/gnachman/iTerm2/commit/b2268b03b5f3d4cd8ca275eaef5d16d0fac20009
GitHub commit

commit 85cbf5ebda47 (gnachman/iTerm2)

Fix landed in gnachman/iTerm2 commit 85cbf5ebda47 — awaiting tagged release

https://github.com/gnachman/iTerm2/commit/85cbf5ebda472c9ec295887e99c2b6f1b5867f1b
Web page

From Terminal Output to Arbitrary Remote Code Execution | solid-snail blog

https://blog.solidsnail.com/posts/2023-08-28-iterm2-rce

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 21× in last 7d / 73× 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 it from the CNA feed. 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). Most recent first.

Showing the most recent 98 of 258 refreshes on record for this CVE.

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. 2 repeat rows among the latest 100 are merged into the row they repeat. The 160 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-02 08:22 UTCEG score recompute
  2. 2026-11-02 08:22 UTCGHSA enrichmentGHSA-555p-hvwp-mh56 · GitHub severity CRITICAL · GitHub CVSS 9.8
  3. 2026-11-01 16:31 UTCEPSS rescoreEPSS 1.3% · 70th percentile
  4. 2026-11-01 08:10 UTCEG score recompute
  5. 2026-11-01 08:10 UTCGHSA enrichmentGHSA-555p-hvwp-mh56 · GitHub severity CRITICAL · GitHub CVSS 9.8
  6. 2026-10-31 16:30 UTCEPSS rescoreEPSS 1.3% · 70th percentile
  7. 2026-10-31 07:57 UTCEG score recompute
  8. 2026-10-31 07:57 UTCGHSA enrichmentGHSA-555p-hvwp-mh56 · GitHub severity CRITICAL · GitHub CVSS 9.8
  9. 2026-10-30 16:31 UTCEPSS rescoreEPSS 1.3% · 70th percentile
  10. 2026-10-30 07:45 UTCEG score recompute
  11. 2026-10-30 07:45 UTCGHSA enrichmentGHSA-555p-hvwp-mh56 · GitHub severity CRITICAL · GitHub CVSS 9.8
  12. 2026-10-29 16:30 UTCEPSS rescoreEPSS 1.3% · 70th percentile
  13. 2026-10-29 07:33 UTCEG score recompute
  14. 2026-10-29 07:33 UTCGHSA enrichmentGHSA-555p-hvwp-mh56 · GitHub severity CRITICAL · GitHub CVSS 9.8
  15. 2026-10-28 16:29 UTCEPSS rescoreEPSS 1.3% · 70th percentile
  16. 2026-10-28 07:22 UTCEG score recompute
  17. 2026-10-28 07:22 UTCGHSA enrichmentGHSA-555p-hvwp-mh56 · GitHub severity CRITICAL · GitHub CVSS 9.8
  18. 2026-10-27 16:29 UTCEPSS rescoreEPSS 1.3% · 70th percentile
  19. 2026-10-27 07:10 UTCEG score recompute
  20. 2026-10-27 07:10 UTCGHSA enrichmentGHSA-555p-hvwp-mh56 · GitHub severity CRITICAL · GitHub CVSS 9.8
  21. 2026-10-26 16:29 UTCEPSS rescoreEPSS 1.3% · 70th percentile
  22. 2026-10-26 03:52 UTCGHSA enrichmentGHSA-555p-hvwp-mh56 · GitHub severity CRITICAL · GitHub CVSS 9.8
  23. 2026-10-25 17:33 UTCEG score recompute
  24. 2026-10-25 16:30 UTCEPSS rescoreEPSS 1.3% · 70th percentile
  25. 2026-10-25 03:40 UTCEG score recompute
Show 73 more
  1. 2026-10-25 03:40 UTCGHSA enrichmentGHSA-555p-hvwp-mh56 · GitHub severity CRITICAL · GitHub CVSS 9.8
  2. 2026-10-24 16:29 UTCEPSS rescoreEPSS 1.3% · 70th percentile
  3. 2026-10-24 03:28 UTCEG score recompute
  4. 2026-10-24 03:28 UTCGHSA enrichmentGHSA-555p-hvwp-mh56 · GitHub severity CRITICAL · GitHub CVSS 9.8
  5. 2026-10-23 16:29 UTCEPSS rescoreEPSS 1.3% · 70th percentile
  6. 2026-10-23 03:16 UTCEG score recompute
  7. 2026-10-23 03:16 UTCGHSA enrichmentGHSA-555p-hvwp-mh56 · GitHub severity CRITICAL · GitHub CVSS 9.8
  8. 2026-10-22 16:31 UTCEPSS rescoreEPSS 1.2% · 67th percentile
  9. 2026-10-22 03:03 UTCEG score recompute
  10. 2026-10-22 03:03 UTCGHSA enrichmentGHSA-555p-hvwp-mh56 · GitHub severity CRITICAL · GitHub CVSS 9.8
  11. 2026-10-21 16:29 UTCEPSS rescoreEPSS 1.2% · 67th percentile
  12. 2026-10-21 02:51 UTCEG score recompute
  13. 2026-10-21 02:51 UTCGHSA enrichmentGHSA-555p-hvwp-mh56 · GitHub severity CRITICAL · GitHub CVSS 9.8
  14. 2026-10-20 16:30 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  15. 2026-10-20 02:36 UTCEG score recompute
  16. 2026-10-20 02:36 UTCGHSA enrichmentGHSA-555p-hvwp-mh56 · GitHub severity CRITICAL · GitHub CVSS 9.8
  17. 2026-10-19 16:29 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  18. 2026-10-19 02:07 UTCEG score recompute
  19. 2026-10-19 02:07 UTCGHSA enrichmentGHSA-555p-hvwp-mh56 · GitHub severity CRITICAL · GitHub CVSS 9.8
  20. 2026-10-18 16:29 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  21. 2026-10-18 07:48 UTCEG score recompute
  22. 2026-10-18 01:54 UTCEG score recompute
  23. 2026-10-18 01:54 UTCGHSA enrichmentGHSA-555p-hvwp-mh56 · GitHub severity CRITICAL · GitHub CVSS 9.8
  24. 2026-10-17 16:30 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  25. 2026-10-17 01:41 UTCEG score recompute
  26. 2026-10-17 01:40 UTCGHSA enrichmentGHSA-555p-hvwp-mh56 · GitHub severity CRITICAL · GitHub CVSS 9.8
  27. 2026-10-16 16:36 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  28. 2026-10-16 01:27 UTCEG score recompute
  29. 2026-10-16 01:26 UTCGHSA enrichmentGHSA-555p-hvwp-mh56 · GitHub severity CRITICAL · GitHub CVSS 9.8
  30. 2026-10-15 16:29 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  31. 2026-10-14 20:59 UTCEG score recompute
  32. 2026-10-14 20:58 UTCGHSA enrichmentGHSA-555p-hvwp-mh56 · GitHub severity CRITICAL · GitHub CVSS 9.8
  33. 2026-10-14 16:30 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  34. 2026-10-13 16:50 UTCEG score recompute
  35. 2026-10-13 16:50 UTCGHSA enrichmentGHSA-555p-hvwp-mh56 · GitHub severity CRITICAL · GitHub CVSS 9.8
  36. 2026-10-13 16:30 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  37. 2026-10-12 16:36 UTCEG score recompute
  38. 2026-10-12 16:35 UTCGHSA enrichmentGHSA-555p-hvwp-mh56 · GitHub severity CRITICAL · GitHub CVSS 9.8
  39. 2026-10-12 16:31 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  40. 2026-10-11 21:43 UTCEG score recompute
  41. 2026-10-11 13:45 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  42. 2026-10-10 19:57 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  43. 2026-10-09 20:05 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  44. 2026-10-08 17:06 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  45. 2026-10-07 23:46 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  46. 2026-10-06 15:15 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  47. 2026-10-05 17:41 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  48. 2026-10-04 23:20 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  49. 2026-10-03 14:23 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  50. 2026-10-01 19:48 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  51. 2026-09-30 16:32 UTCEG score recompute
  52. 2026-09-30 15:01 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  53. 2026-09-29 15:17 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  54. 2026-09-28 13:49 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  55. 2026-09-27 13:42 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  56. 2026-09-26 00:22 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  57. 2026-09-24 14:01 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  58. 2026-09-23 13:46 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  59. 2026-09-22 18:39 UTCOSV refresh
  60. 2026-09-22 14:46 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  61. 2026-09-21 20:31 UTCEPSS rescoreEPSS 1.2% · 65th percentile
  62. 2026-09-20 20:14 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  63. 2026-09-18 19:26 UTCEPSS rescoreEPSS 1.2% · 65th percentile
  64. 2026-09-17 19:25 UTCEPSS rescoreEPSS 1.2% · 65th percentile
  65. 2026-09-16 14:06 UTCEPSS rescoreEPSS 1.2% · 65th percentile
  66. 2026-09-16 05:11 UTCEPSS rescoreEPSS 1.2% · 65th percentile
  67. 2026-09-15 03:08 UTCEPSS rescoreEPSS 1.2% · 65th percentile
  68. 2026-09-13 16:44 UTCEPSS rescoreEPSS 1.2% · 65th percentile
  69. 2026-09-12 14:58 UTCEPSS rescoreEPSS 1.2% · 65th percentile
  70. 2026-09-11 14:50 UTCEPSS rescoreEPSS 1.2% · 65th percentile
  71. 2026-09-11 09:34 UTCEPSS rescoreEPSS 1.2% · 65th percentile
  72. 2026-09-08 21:58 UTCEPSS rescoreEPSS 1.2% · 65th percentile
  73. 2026-09-07 15:59 UTCEPSS rescoreEPSS 1.2% · 65th percentile

Frequently asked(5)

What is CVE-2023-46301?
CVE-2023-46301 is a critical-severity vulnerability; its CVE record was published on October 22, 2023. iTerm2 before 3.4.20 allow (potentially remote) code execution because of mishandling of certain escape sequences related to upload.
When was the CVE record for CVE-2023-46301 published?
The CVE record for CVE-2023-46301 was published on October 22, 2023. 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-2023-46301 actively exploited?
CVE-2023-46301 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1.3% probability of exploitation in the next 30 days (70th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2023-46301?
CVE-2023-46301 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2023-46301?
A fix for CVE-2023-46301 is referenced (a reference tagged "Patch", often a source commit), but EchelonGraph has no release containing it on record. Check that reference and the vendor's advisory for a release that contains the fix and update to it; until then, restrict network exposure of the affected system or apply the vendor's mitigation.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2023-46301

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