CVE-2026-15379

MEDIUMPre-NVD 5.15.1
EchelonGraph scoreMEDIUM confidence

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

This medium-severity CVE scores 5.1 under a secondary CVSS source (NVD's own analysis pending). 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 a secondary CVSS source
Sources: EPSS, a secondary CVSS source
5.1EG
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: 0.1%CVSS: 5.1Exploit: None knownExposed services: Not assessed

No fix is confirmed yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for the fix.

The Altiris WMI provider exposes a class (AltirisAgent_Stream) that allows any local standard user to read the contents of any file accessible to the SYSTEM account, bypassing filesystem ACLs. No admin privileges required. The provider reverts to the LocalSystem context when servicing WMI queries without re-impersonating the caller. Any local standard user can therefore read SYSTEM-readable files — including configuration files, service logs, and secrets stored with SYSTEM/Administrator-only ACLs — by querying the provider directly.

CVSS v3
5.1
EG Score
5.1MEDIUMmedium confidence
EG Risk
23
EG Risk 23/100

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)
Severity51% × 45%
The EG Score, 5.1 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 every mission impact level.
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (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: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.
EPSS PROB
0.1%
EPSS %ILE
3rd
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at every mission impact level.

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (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)60 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 partial (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

July 17, 2026

Last Modified

July 21, 2026

Advisory Details (1)

Auto-updated Jul 17, 2026
No fix on record yet.
Web page

Home - Broadcom support portal

https://support.broadcom.com/web/ecx/support-content-notification/-/external/content/SecurityAdvisories/0/37995

Vendor Advisories for CVE-2026-15379(1)

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

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 11× in last 7d / 36× 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 173 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 73 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-13 16:33 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  2. 2026-10-12 16:33 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  3. 2026-10-12 16:32 UTCEG score recompute
  4. 2026-10-11 20:10 UTCEG score recompute
  5. 2026-10-11 17:22 UTCEG score recompute
  6. 2026-10-11 14:55 UTCEG score recompute
  7. 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  8. 2026-10-10 19:59 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  9. 2026-10-09 20:06 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  10. 2026-10-08 17:11 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  11. 2026-10-07 23:47 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  12. 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  13. 2026-10-05 17:42 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  14. 2026-10-04 23:21 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  15. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  16. 2026-10-01 19:49 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  17. 2026-10-01 11:18 UTCEG score recompute
  18. 2026-10-01 11:18 UTCGHSA enrichmentGHSA-63vq-vxhh-x3pr
  19. 2026-09-30 15:02 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  20. 2026-09-29 15:20 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  21. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  22. 2026-09-28 08:13 UTCEG score recompute
  23. 2026-09-28 08:13 UTCGHSA enrichmentGHSA-63vq-vxhh-x3pr
  24. 2026-09-27 13:47 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  25. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
Show 75 more
  1. 2026-09-24 04:40 UTCEG score recompute
  2. 2026-09-24 04:40 UTCGHSA enrichmentGHSA-63vq-vxhh-x3pr
  3. 2026-09-23 02:37 UTCEG score recompute
  4. 2026-09-23 02:37 UTCGHSA enrichmentGHSA-63vq-vxhh-x3pr
  5. 2026-09-18 19:27 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  6. 2026-09-18 09:56 UTCEG score recompute
  7. 2026-09-18 09:56 UTCGHSA enrichmentGHSA-63vq-vxhh-x3pr
  8. 2026-09-17 10:16 UTCEG score recompute
  9. 2026-09-17 10:16 UTCGHSA enrichmentGHSA-63vq-vxhh-x3pr
  10. 2026-09-16 14:07 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  11. 2026-09-16 05:14 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  12. 2026-09-14 05:33 UTCEG score recompute
  13. 2026-09-14 05:33 UTCGHSA enrichmentGHSA-63vq-vxhh-x3pr
  14. 2026-09-13 16:46 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  15. 2026-09-13 07:04 UTCGHSA enrichmentGHSA-63vq-vxhh-x3pr
  16. 2026-09-11 21:11 UTCEG score recompute
  17. 2026-09-11 21:11 UTCGHSA enrichmentGHSA-63vq-vxhh-x3pr
  18. 2026-09-11 14:52 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  19. 2026-09-11 09:36 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  20. 2026-09-10 09:34 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  21. 2026-09-08 22:00 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  22. 2026-09-08 00:03 UTCEG score recompute
  23. 2026-09-08 00:03 UTCGHSA enrichmentGHSA-63vq-vxhh-x3pr
  24. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  25. 2026-09-06 18:57 UTCEG score recompute
  26. 2026-09-06 18:57 UTCGHSA enrichmentGHSA-63vq-vxhh-x3pr
  27. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  28. 2026-09-05 20:28 UTCEG score recompute
  29. 2026-09-05 20:28 UTCGHSA enrichmentGHSA-63vq-vxhh-x3pr
  30. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  31. 2026-09-02 14:11 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  32. 2026-09-01 13:53 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  33. 2026-09-01 04:39 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  34. 2026-08-31 01:50 UTCEG score recompute
  35. 2026-08-31 01:50 UTCGHSA enrichmentGHSA-63vq-vxhh-x3pr
  36. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  37. 2026-08-30 03:21 UTCEG score recompute
  38. 2026-08-30 03:21 UTCGHSA enrichmentGHSA-63vq-vxhh-x3pr
  39. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  40. 2026-08-28 21:41 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  41. 2026-08-27 21:26 UTCEG score recompute
  42. 2026-08-27 21:26 UTCGHSA enrichmentGHSA-63vq-vxhh-x3pr
  43. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  44. 2026-08-26 22:38 UTCEG score recompute
  45. 2026-08-26 22:38 UTCGHSA enrichmentGHSA-63vq-vxhh-x3pr
  46. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  47. 2026-08-25 18:53 UTCEG score recompute
  48. 2026-08-25 18:53 UTCGHSA enrichmentGHSA-63vq-vxhh-x3pr
  49. 2026-08-25 13:48 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  50. 2026-08-24 19:16 UTCEG score recompute
  51. 2026-08-24 19:16 UTCGHSA enrichmentGHSA-63vq-vxhh-x3pr
  52. 2026-08-23 17:40 UTCEG score recompute
  53. 2026-08-23 17:40 UTCGHSA enrichmentGHSA-63vq-vxhh-x3pr
  54. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  55. 2026-08-22 19:12 UTCEG score recompute
  56. 2026-08-22 19:12 UTCGHSA enrichmentGHSA-63vq-vxhh-x3pr
  57. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  58. 2026-08-21 20:44 UTCEG score recompute
  59. 2026-08-21 20:44 UTCGHSA enrichmentGHSA-63vq-vxhh-x3pr
  60. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  61. 2026-08-20 22:15 UTCGHSA enrichmentGHSA-63vq-vxhh-x3pr
  62. 2026-08-19 23:32 UTCEG score recompute
  63. 2026-08-19 23:32 UTCGHSA enrichmentGHSA-63vq-vxhh-x3pr
  64. 2026-08-19 17:03 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  65. 2026-08-18 21:51 UTCEG score recompute
  66. 2026-08-18 21:51 UTCGHSA enrichmentGHSA-63vq-vxhh-x3pr
  67. 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  68. 2026-08-17 22:46 UTCEG score recompute
  69. 2026-08-17 22:46 UTCGHSA enrichmentGHSA-63vq-vxhh-x3pr
  70. 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  71. 2026-08-17 00:17 UTCEG score recompute
  72. 2026-08-17 00:17 UTCGHSA enrichmentGHSA-63vq-vxhh-x3pr
  73. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  74. 2026-08-16 02:14 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  75. 2026-08-16 01:49 UTCGHSA enrichmentGHSA-63vq-vxhh-x3pr

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-15379?
CVE-2026-15379 is a medium-severity vulnerability; its CVE record was published on July 17, 2026. The Altiris WMI provider exposes a class (AltirisAgent_Stream) that allows any local standard user to read the contents of any file accessible to the SYSTEM account, bypassing filesystem ACLs. No admin privileges required. The provider reverts to the LocalSystem context when servicing WMI queries…
When was the CVE record for CVE-2026-15379 published?
The CVE record for CVE-2026-15379 was published on July 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 July 21, 2026; the record at its source may have been updated since.
Is CVE-2026-15379 actively exploited?
CVE-2026-15379 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-2026-15379?
CVE-2026-15379 has a CVSS base score of 5.1 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-15379?
No fix for CVE-2026-15379 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The vendor advisories EchelonGraph has for CVE-2026-15379 are linked in the Vendor Advisories panel on this page.

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