CVE-2026-9789

HIGHNVD 8.58.5
EchelonGraph scoreMEDIUM confidence

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

This high-severity CVE scores 8.5 under NVD CVSS v3. EPSS exploit probability: 0.1% (3rd percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from NVD CVSS v3
Sources: EPSS, NVD CVSS v3
Trending — 3 sources updated this week
8.5EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.1%CVSS: 8.5Exploit: None knownExposed services: Not assessed

This issue is resolved in NitroSense versions V3.01.3056 (from the CVE record's solution, Acer Inc.) — apply it.

A Local Privilege Escalation (LPE) vulnerability affects Acer NitroSense software versions prior to 3.01.3052. The vulnerability stems from the the PSAdminAgent service, which creates a Named Pipe with a weak Access Control List (ACL). This allows any authenticated local user to connect and send commands. Because the service does not check the caller's privileges before running file deletion commands, a low-privileged local user can exploit this to delete arbitrary files with system authority.

CVSS v3
8.5
EG Score
8.5HIGHmedium confidence
EG Risk
38
EG Risk 38/100

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed (value × EchelonGraph’s weight)
Severity85% × 45%
The EG Score, 8.5 of 10.
Exploitation0.1% × 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: This issue is resolved in NitroSense versions V3.01.3056 (from the CVE record's solution, Acer Inc.). Apply it within your standard update timelines.
EPSS PROB
0.1%
EPSS %ILE
3rd
KEV
Not listed

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

This issue is resolved in NitroSense versions V3.01.3056 (from the CVE record's solution, Acer Inc.). 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

May 28, 2026

Last Modified

May 28, 2026

Advisory Details (1)

Auto-updated May 28, 2026
Fix named in the CVE record's solution (Acer Inc.).
Web page

NitroSense Software v3 Security Vulnerability Information - Acer Community

https://community.acer.com/en/kb/articles/19670

Vendor Advisories for CVE-2026-9789(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(4)

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

Data Freshness Timeline

(refreshed 12× 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 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 247 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 147 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-15 16:33 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  2. 2026-10-14 16:34 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  3. 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  4. 2026-10-13 03:59 UTCEG score recompute
  5. 2026-10-13 03:59 UTCGHSA enrichmentGHSA-pcjv-vg43-2hf7 · GitHub severity HIGH
  6. 2026-10-12 14:39 UTCEG score recompute
  7. 2026-10-11 19:10 UTCEG score recompute
  8. 2026-10-11 16:26 UTCEG score recompute
  9. 2026-10-11 13:50 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  10. 2026-10-11 13:38 UTCEG score recompute
  11. 2026-10-10 20:01 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  12. 2026-10-09 20:08 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  13. 2026-10-08 17:14 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  14. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  15. 2026-10-06 15:19 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  16. 2026-10-05 17:44 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  17. 2026-10-04 23:23 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  18. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  19. 2026-10-02 17:57 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  20. 2026-10-01 19:51 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  21. 2026-09-30 15:04 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  22. 2026-09-29 15:24 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  23. 2026-09-28 13:52 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  24. 2026-09-27 13:49 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  25. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
Show 75 more
  1. 2026-09-24 14:04 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  2. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  3. 2026-09-22 16:01 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  4. 2026-09-21 21:09 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  5. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  6. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  7. 2026-09-17 19:32 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  8. 2026-09-16 14:09 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  9. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  10. 2026-09-15 03:12 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  11. 2026-09-14 07:32 UTCEG score recompute
  12. 2026-09-14 07:32 UTCGHSA enrichmentGHSA-pcjv-vg43-2hf7 · GitHub severity HIGH
  13. 2026-09-13 16:48 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  14. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  15. 2026-09-11 09:38 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  16. 2026-09-10 09:35 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  17. 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  18. 2026-09-06 13:48 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  19. 2026-09-05 15:31 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  20. 2026-09-04 05:07 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  21. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  22. 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  23. 2026-08-30 19:18 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  24. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  25. 2026-08-28 21:42 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  26. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  27. 2026-08-26 14:47 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  28. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  29. 2026-08-25 05:08 UTCEG score recompute
  30. 2026-08-25 05:08 UTCGHSA enrichmentGHSA-pcjv-vg43-2hf7 · GitHub severity HIGH
  31. 2026-08-24 14:18 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  32. 2026-08-23 14:51 UTCEG score recompute
  33. 2026-08-23 14:51 UTCGHSA enrichmentGHSA-pcjv-vg43-2hf7 · GitHub severity HIGH
  34. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  35. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  36. 2026-08-21 20:27 UTCGHSA enrichmentGHSA-pcjv-vg43-2hf7 · GitHub severity HIGH
  37. 2026-08-21 01:00 UTCEG score recompute
  38. 2026-08-21 00:59 UTCGHSA enrichmentGHSA-pcjv-vg43-2hf7 · GitHub severity HIGH
  39. 2026-08-20 22:56 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  40. 2026-08-20 11:11 UTCEG score recompute
  41. 2026-08-20 11:11 UTCGHSA enrichmentGHSA-pcjv-vg43-2hf7 · GitHub severity HIGH
  42. 2026-08-19 17:04 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  43. 2026-08-18 13:49 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  44. 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  45. 2026-08-17 09:08 UTCGHSA enrichmentGHSA-pcjv-vg43-2hf7 · GitHub severity HIGH
  46. 2026-08-16 15:12 UTCEG score recompute
  47. 2026-08-16 15:12 UTCGHSA enrichmentGHSA-pcjv-vg43-2hf7 · GitHub severity HIGH
  48. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  49. 2026-08-16 02:42 UTCEG score recompute
  50. 2026-08-16 02:42 UTCGHSA enrichmentGHSA-pcjv-vg43-2hf7 · GitHub severity HIGH
  51. 2026-08-16 02:15 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  52. 2026-08-15 01:55 UTCEG score recompute
  53. 2026-08-15 01:55 UTCGHSA enrichmentGHSA-pcjv-vg43-2hf7 · GitHub severity HIGH
  54. 2026-08-15 01:31 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  55. 2026-08-14 13:38 UTCGHSA enrichmentGHSA-pcjv-vg43-2hf7 · GitHub severity HIGH
  56. 2026-08-14 01:22 UTCEG score recompute
  57. 2026-08-14 01:22 UTCGHSA enrichmentGHSA-pcjv-vg43-2hf7 · GitHub severity HIGH
  58. 2026-08-13 22:00 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  59. 2026-08-13 02:23 UTCGHSA enrichmentGHSA-pcjv-vg43-2hf7 · GitHub severity HIGH
  60. 2026-08-12 14:07 UTCEG score recompute
  61. 2026-08-12 14:07 UTCGHSA enrichmentGHSA-pcjv-vg43-2hf7 · GitHub severity HIGH
  62. 2026-08-12 13:51 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  63. 2026-08-12 01:47 UTCEG score recompute
  64. 2026-08-12 01:47 UTCGHSA enrichmentGHSA-pcjv-vg43-2hf7 · GitHub severity HIGH
  65. 2026-08-11 13:43 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  66. 2026-08-11 13:30 UTCGHSA enrichmentGHSA-pcjv-vg43-2hf7 · GitHub severity HIGH
  67. 2026-08-11 00:09 UTCEG score recompute
  68. 2026-08-11 00:08 UTCGHSA enrichmentGHSA-pcjv-vg43-2hf7 · GitHub severity HIGH
  69. 2026-08-11 00:00 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  70. 2026-08-10 11:20 UTCGHSA enrichmentGHSA-pcjv-vg43-2hf7 · GitHub severity HIGH
  71. 2026-08-09 23:03 UTCEG score recompute
  72. 2026-08-09 23:03 UTCGHSA enrichmentGHSA-pcjv-vg43-2hf7 · GitHub severity HIGH
  73. 2026-08-09 13:47 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  74. 2026-08-09 10:47 UTCGHSA enrichmentGHSA-pcjv-vg43-2hf7 · GitHub severity HIGH
  75. 2026-08-08 22:31 UTCEG score recompute

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Frequently asked(5)

What is CVE-2026-9789?
CVE-2026-9789 is a high-severity vulnerability; its CVE record was published on May 28, 2026. A Local Privilege Escalation (LPE) vulnerability affects Acer NitroSense software versions prior to 3.01.3052. The vulnerability stems from the the PSAdminAgent service, which creates a Named Pipe with a weak Access Control List (ACL). This allows any authenticated local user to connect and send…
When was the CVE record for CVE-2026-9789 published?
The CVE record for CVE-2026-9789 was published on May 28, 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 May 28, 2026; the record at its source may have been updated since.
Is CVE-2026-9789 actively exploited?
CVE-2026-9789 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.1% probability of exploitation in the next 30 days (3rd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-9789?
CVE-2026-9789 has a CVSS v3 base score of 8.5 (NVD).
How do I remediate CVE-2026-9789?
The CVE record's solution for CVE-2026-9789, written by its CNA Acer Inc., names the fix: "This issue is resolved in NitroSense versions V3.01.3056." The vendor advisories EchelonGraph has for CVE-2026-9789 are linked in the Vendor Advisories panel on this page.

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