CVE-2026-50526

MEDIUMNVD 5.55.5
EchelonGraph scoreMEDIUM confidence

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

This medium-severity CVE scores 5.5 under NVD CVSS v3. EPSS exploit probability: 0.2% (11th 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
5.5EG
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: 5.5Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

Improper link resolution before file access ('link following') in .NET allows an authorized attacker to perform tampering locally.

CVSS v3
5.5
EG Score
5.5MEDIUMmedium confidence
EG Risk
25
EG Risk 25/100

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)
Severity55% × 45%
The EG Score, 5.5 of 10.
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
11th
KEV
Not listed

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

July 14, 2026

Last Modified

October 8, 2026

Advisory Details (1)

Auto-updated Jul 15, 2026
Patch available. Sources: microsoft.
MicrosoftMentions a patch (unverified)

Security Update Guide - Microsoft Security Response Center

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50526

Vendor Advisories for CVE-2026-50526(19)

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

Patch Availability(18)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubuntudotnet10 (10.0.110-10.0.10-0ubuntu1~26.04.1) @ resolute2026-10-08ubuntu
redhatdotnet9.0-0:9.0.120-1.el9_62026-08-24redhat
redhatdotnet9.0-0:9.0.120-1.el10_02026-08-24redhat
redhatdotnet8.0-0:8.0.130-1.el9_62026-08-24redhat
redhatdotnet8.0-0:8.0.130-1.el9_42026-08-24redhat
redhatdotnet8.0-0:8.0.130-1.el10_02026-08-24redhat
redhatdotnet8.0-0:8.0.129-1.el9_82026-07-20redhat
redhatdotnet10.0-0:10.0.110-1.el8_102026-07-20redhat
redhatdotnet8.0-0:8.0.129-1.el8_102026-07-20redhat
redhatdotnet9.0-0:9.0.119-1.el10_22026-07-20redhat
redhatdotnet9.0-0:9.0.119-1.el9_82026-07-20redhat
redhatdotnet10.0-0:10.0.110-1.el9_82026-07-20redhat
redhatdotnet8-0-main-8.0.129-2.1.hum12026-07-20redhat
redhatdotnet8.0-0:8.0.129-1.el10_22026-07-20redhat
redhatdotnet10.0-0:10.0.110-1.el10_22026-07-20redhat
redhatdotnet9.0-0:9.0.119-1.el8_102026-07-20redhat
redhatdotnet9-0-main-9.0.118-1.hum12026-06-19redhat
redhatdotnet10-0-main-10.0.109-1.hum12026-06-17redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(1 across 1 ecosystem)
NuGet(1)
PackageVulnerable rangeFix by version rangeDependents
Microsoft.NET.Build.Containers—
  • 10.0.0 up to 10.0.10: fixed in 10.0.10
  • 9.0.0 up to 9.0.18: fixed in 9.0.18
  • 8.0.0 up to 8.0.29: fixed in 8.0.29
—

Weakness Classification(2)

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

Additional Vendor Advisories

(1)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 13× in last 7d / 40× 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 197 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 97 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

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

Related CVEs(same product + same vendor + same CWE)

Same product

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NuGet:Microsoft.NET.Build.Containers

Frequently asked(5)

What is CVE-2026-50526?
CVE-2026-50526 is a medium-severity vulnerability; its CVE record was published on July 14, 2026. Improper link resolution before file access ('link following') in .NET allows an authorized attacker to perform tampering locally.
When was CVE-2026-50526 made public?
CVE-2026-50526 was made public on July 14, 2026: that is the date its CVE record's CNA, Microsoft Corporation, gives for when the vulnerability was made public. The CVE record itself was published on July 14, 2026. EchelonGraph's copy of the record carries a last-modified date of October 8, 2026; the record at its source may have been updated since.
Is CVE-2026-50526 actively exploited?
CVE-2026-50526 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (11th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-50526?
CVE-2026-50526 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2026-50526?
A fix for CVE-2026-50526 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-50526 are linked in the Vendor Advisories panel on this page.

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