CVE-2026-73250

MEDIUMPre-NVD 5.45.4
EchelonGraph scoreMEDIUM confidence

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

This medium-severity CVE scores 5.4 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.2% (8th percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from a secondary CVSS source
Sources: EPSS, a secondary CVSS source
5.4EG
EchelonGraph verdictMonitorRemediate within your standard update timelines (the SSVC decision on this page).
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 5.4Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

Notepad++ is a free and open-source source code editor. Prior to 8.9.7, the Notepad++ Windows 11 x64 and ARM64 installer passes the attacker-influenced installation directory $INSTDIR from PowerEditor/installer/nppSetup.nsi into a PowerShell -Command string used by RegisterMSIX to invoke Add-AppxPackage, allowing PowerShell subexpression syntax such as $() in the installation path to execute commands in the installer's security context when the context menu component is selected. This issue is fixed in version 8.9.7.

CVSS v3
5.4
EG Score
5.4MEDIUMmedium confidence
EG Risk
24
EG Risk 24/100

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)
Severity54% × 45%
Impact severity (EG Severity): CVSS 5.4 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.2% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable no (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 available. Apply it within your standard update timelines.
EPSS PROB
0.2%
EPSS %ILE
8th
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 (5.4): severity, escalated by confirmed exploitation. This CVE's 5.4 is its impact severity (EG Severity), not escalated.

EG Severity
5.4 MEDIUMCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.a secondary CVSS source · CVSS v3.0 or v3.1
EG Likelihood
0.2% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-17). 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.Each input and its source: 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).

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (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)14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (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

August 11, 2026

Last Modified

September 9, 2026

Advisory Details (3)

Auto-updated Aug 11, 2026
Patch available. Sources: github, github_commit, github_release.
GitHub release Patch Available

Notepad++ release 8.9.7

Patch available: notepad-plus-plus/notepad-plus-plus v8.9.7

https://github.com/notepad-plus-plus/notepad-plus-plus/releases/tag/v8.9.7
GitHub commit

commit 3764d5b72664 (notepad-plus-plus/notepad-plus-plus)

Fix landed in notepad-plus-plus/notepad-plus-plus commit 3764d5b72664 — awaiting tagged release

https://github.com/notepad-plus-plus/notepad-plus-plus/commit/3764d5b72664ef95421bc53bcb204f9b977d346b
GitHub advisoryMentions a patch (unverified)

Install-time PowerShell command injection through installation path · Advisory · notepad-plus-plus/notepad-plus-plus · GitHub

https://github.com/notepad-plus-plus/notepad-plus-plus/security/advisories/GHSA-gp2r-262h-9hgf

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 8× in last 7d / 41× 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 97 of 103 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. 3 repeat rows among the latest 100 are merged into the row they repeat. The 6 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-19 16:33 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  2. 2026-10-18 16:32 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  3. 2026-10-18 03:15 UTCEG score recompute
  4. 2026-10-17 16:35 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  5. 2026-10-16 16:44 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  6. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  7. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  8. 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  9. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  10. 2026-10-12 15:41 UTCEG score recompute
  11. 2026-10-11 19:26 UTCEG score recompute
  12. 2026-10-11 16:42 UTCEG score recompute
  13. 2026-10-11 14:02 UTCEG score recompute
  14. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  15. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  16. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  17. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  18. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  19. 2026-10-06 17:34 UTCEG score recompute
  20. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  21. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  22. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  23. 2026-10-03 20:26 UTCEG score recompute
  24. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  25. 2026-10-02 08:25 UTCEG score recompute
Show 72 more
  1. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  2. 2026-09-30 22:00 UTCEG score recompute
  3. 2026-09-29 15:24 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  4. 2026-09-28 13:52 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  5. 2026-09-28 11:11 UTCEG score recompute
  6. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  7. 2026-09-27 09:59 UTCEG score recompute
  8. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  9. 2026-09-25 03:44 UTCEG score recompute
  10. 2026-09-23 23:34 UTCEG score recompute
  11. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  12. 2026-09-22 21:27 UTCEG score recompute
  13. 2026-09-21 21:09 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  14. 2026-09-21 20:15 UTCEG score recompute
  15. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  16. 2026-09-20 17:07 UTCEG score recompute
  17. 2026-09-19 12:06 UTCEG score recompute
  18. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  19. 2026-09-17 06:57 UTCEG score recompute
  20. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  21. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  22. 2026-09-15 03:34 UTCEG score recompute
  23. 2026-09-15 03:12 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  24. 2026-09-14 02:21 UTCEG score recompute
  25. 2026-09-13 01:09 UTCEG score recompute
  26. 2026-09-12 15:02 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  27. 2026-09-11 23:57 UTCEG score recompute
  28. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  29. 2026-09-10 22:41 UTCEG score recompute
  30. 2026-09-10 09:35 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  31. 2026-09-09 05:21 UTCEG score recompute
  32. 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  33. 2026-09-07 16:46 UTCEG score recompute
  34. 2026-09-06 13:48 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  35. 2026-09-06 05:44 UTCEG score recompute
  36. 2026-09-05 04:29 UTCEG score recompute
  37. 2026-09-04 05:07 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  38. 2026-09-03 01:26 UTCEG score recompute
  39. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  40. 2026-09-01 22:57 UTCEG score recompute
  41. 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  42. 2026-08-31 21:44 UTCEG score recompute
  43. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  44. 2026-08-30 16:26 UTCEG score recompute
  45. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  46. 2026-08-29 15:14 UTCEG score recompute
  47. 2026-08-28 21:42 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  48. 2026-08-28 10:18 UTCEG score recompute
  49. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  50. 2026-08-26 07:10 UTCEG score recompute
  51. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  52. 2026-08-25 05:57 UTCEG score recompute
  53. 2026-08-23 03:32 UTCEG score recompute
  54. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  55. 2026-08-22 02:20 UTCEG score recompute
  56. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  57. 2026-08-21 00:58 UTCEG score recompute
  58. 2026-08-20 22:56 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  59. 2026-08-19 23:46 UTCEG score recompute
  60. 2026-08-19 17:04 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  61. 2026-08-18 22:33 UTCEG score recompute
  62. 2026-08-18 13:49 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  63. 2026-08-17 21:21 UTCEG score recompute
  64. 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  65. 2026-08-16 20:09 UTCEG score recompute
  66. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  67. 2026-08-16 02:15 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  68. 2026-08-15 18:57 UTCEG score recompute
  69. 2026-08-15 01:31 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  70. 2026-08-14 17:45 UTCEG score recompute
  71. 2026-08-13 22:00 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  72. 2026-08-13 16:31 UTCEG score recompute

Frequently asked(5)

What is CVE-2026-73250?
CVE-2026-73250 is a medium-severity vulnerability; its CVE record was published on August 11, 2026. Notepad++ is a free and open-source source code editor. Prior to 8.9.7, the Notepad++ Windows 11 x64 and ARM64 installer passes the attacker-influenced installation directory $INSTDIR from PowerEditor/installer/nppSetup.nsi into a PowerShell -Command string used by RegisterMSIX to invoke…
When was the CVE record for CVE-2026-73250 published?
The CVE record for CVE-2026-73250 was published on August 11, 2026. 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 September 9, 2026; the record at its source may have been updated since.
Is CVE-2026-73250 actively exploited?
CVE-2026-73250 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (8th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-73250?
CVE-2026-73250 has a CVSS base score of 5.4 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-73250?
A fix for CVE-2026-73250 is available: update to the fixed version the vendor names in its advisory.

Dependency Blast Radius

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