CVE-2026-71858

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: 0.1% (1st 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
Elevated

Also known asEUVD-2026-60373 (ENISA EUVD)Source: ENISA EUVD

5.4EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines 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: 0.1%CVSS: 5.4Exploit: No code on recordExposed services: Not assessed

A fix is available — apply it.

Notepad++ is a free and open-source source code editor. Prior to 8.9.7, macros loaded from an attacker-controlled shortcuts.xml bypass the HMAC validation applied to UserDefinedCommands and can invoke Scintilla actions and the internal Open in Default Viewer command in an elevated Notepad++ process, allowing protected file modification and conditional elevated command execution when a local attacker influences settingsDir and a user triggers the macro. This issue is fixed in version 8.9.7.

CVSS v3
5.4
EG Score
5.4MEDIUMmedium confidence
EG Risk
40
EG Risk 40/100

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.
Exploitation40% × 40%
EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.
Automatability0% × 15%
CISA's SSVC Automatable value: no (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 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 at low or medium mission impact and sooner than that at high.
EPSS PROB
0.1%
EPSS %ILE
1st
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
0.1% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-24). 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: 14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.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 available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation public PoC (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.

The score's inputs: 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 17, 2026

Last Modified

September 9, 2026

Advisory Details (3)

Auto-updated Aug 17, 2026
Patch available. Sources: github_commit, github_release, github.
GitHub advisoryMentions a patch (unverified)

shortcuts.xml Macro HMAC Bypass Enables Conditional Elevated Command Execution · Advisory · notepad-plus-plus/notepad-plus-plus · GitHub

https://github.com/notepad-plus-plus/notepad-plus-plus/security/advisories/GHSA-f4rj-vqq4-wvg4
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 7686e5a3025e (notepad-plus-plus/notepad-plus-plus)

Fix landed in notepad-plus-plus/notepad-plus-plus commit 7686e5a3025e — awaiting tagged release

https://github.com/notepad-plus-plus/notepad-plus-plus/commit/7686e5a3025eaf1fb8e024c2ceb54670ea05f5fb

Weakness Classification(3)

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

Data Freshness Timeline

(refreshed 6× in last 7d / 38× 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 100 of 108 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. None are among the latest 100 rows. The 8 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-31 16:33 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  2. 2026-10-30 06:55 UTCOSV refresh
  3. 2026-10-29 16:34 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  4. 2026-10-28 16:33 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  5. 2026-10-27 16:32 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  6. 2026-10-26 16:32 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  7. 2026-10-25 16:33 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  8. 2026-10-25 14:07 UTCEG score recompute
  9. 2026-10-24 16:33 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  10. 2026-10-23 16:32 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  11. 2026-10-22 19:23 UTCEG score recompute
  12. 2026-10-22 16:35 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  13. 2026-10-21 16:33 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  14. 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  15. 2026-10-19 16:33 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  16. 2026-10-18 16:32 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  17. 2026-10-18 03:16 UTCEG score recompute
  18. 2026-10-16 16:44 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  19. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  20. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  21. 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  22. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  23. 2026-10-12 15:42 UTCEG score recompute
  24. 2026-10-11 19:28 UTCEG score recompute
  25. 2026-10-11 16:43 UTCEG score recompute
Show 75 more
  1. 2026-10-11 14:03 UTCEG score recompute
  2. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  3. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  4. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  5. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  6. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  7. 2026-10-07 11:26 UTCEG score recompute
  8. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  9. 2026-10-06 09:02 UTCEG score recompute
  10. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  11. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  12. 2026-10-03 17:46 UTCEG score recompute
  13. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  14. 2026-10-02 15:45 UTCEG score recompute
  15. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  16. 2026-10-01 10:48 UTCEG score recompute
  17. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  18. 2026-09-30 09:58 UTCEG score recompute
  19. 2026-09-28 13:52 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  20. 2026-09-28 08:55 UTCEG score recompute
  21. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  22. 2026-09-27 08:05 UTCEG score recompute
  23. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  24. 2026-09-24 13:16 UTCEG score recompute
  25. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  26. 2026-09-23 12:25 UTCEG score recompute
  27. 2026-09-22 11:27 UTCEG score recompute
  28. 2026-09-21 21:09 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  29. 2026-09-21 10:36 UTCEG score recompute
  30. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  31. 2026-09-20 09:45 UTCEG score recompute
  32. 2026-09-19 06:07 UTCEG score recompute
  33. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  34. 2026-09-18 05:15 UTCEG score recompute
  35. 2026-09-17 04:25 UTCEG score recompute
  36. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  37. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  38. 2026-09-16 03:28 UTCEG score recompute
  39. 2026-09-15 03:12 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  40. 2026-09-14 01:29 UTCEG score recompute
  41. 2026-09-13 00:39 UTCEG score recompute
  42. 2026-09-12 15:02 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  43. 2026-09-11 23:45 UTCEG score recompute
  44. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  45. 2026-09-10 22:18 UTCEG score recompute
  46. 2026-09-10 09:35 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  47. 2026-09-09 03:38 UTCEG score recompute
  48. 2026-09-08 22:01 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  49. 2026-09-07 16:11 UTCEG score recompute
  50. 2026-09-06 15:06 UTCEG score recompute
  51. 2026-09-06 13:48 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  52. 2026-09-05 14:13 UTCEG score recompute
  53. 2026-09-03 12:14 UTCEG score recompute
  54. 2026-09-02 14:12 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  55. 2026-09-02 11:14 UTCEG score recompute
  56. 2026-09-01 13:54 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  57. 2026-09-01 10:24 UTCEG score recompute
  58. 2026-09-01 04:40 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  59. 2026-08-31 09:31 UTCEG score recompute
  60. 2026-08-30 19:17 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  61. 2026-08-30 07:53 UTCEG score recompute
  62. 2026-08-30 01:22 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  63. 2026-08-29 06:56 UTCEG score recompute
  64. 2026-08-28 21:42 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  65. 2026-08-28 06:05 UTCEG score recompute
  66. 2026-08-27 05:10 UTCEG score recompute
  67. 2026-08-26 14:47 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  68. 2026-08-25 03:26 UTCEG score recompute
  69. 2026-08-23 01:45 UTCEG score recompute
  70. 2026-08-23 00:19 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  71. 2026-08-22 00:53 UTCEG score recompute
  72. 2026-08-21 23:49 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  73. 2026-08-21 00:02 UTCEG score recompute
  74. 2026-08-20 22:56 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  75. 2026-08-19 23:12 UTCEG score recompute

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-71858?
CVE-2026-71858 is a medium-severity vulnerability; its CVE record was published on August 17, 2026. Notepad++ is a free and open-source source code editor. Prior to 8.9.7, macros loaded from an attacker-controlled shortcuts.xml bypass the HMAC validation applied to UserDefinedCommands and can invoke Scintilla actions and the internal Open in Default Viewer command in an elevated Notepad++…
When was the CVE record for CVE-2026-71858 published?
The CVE record for CVE-2026-71858 was published on August 17, 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-2026-71858 actively exploited?
CVE-2026-71858 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.1% probability of exploitation in the next 30 days (1st percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-71858?
CVE-2026-71858 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-2026-71858?
A fix for CVE-2026-71858 is available: update to the fixed version the vendor names in its advisory.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-71858

Explore →

Is Your Infrastructure Affected by CVE-2026-71858?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Book a Demo →Browse All CVEs