CVE-2026-50527

HIGHPre-NVD 7.57.5
EchelonGraph scoreMEDIUM confidence

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

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-07-21. The CNA's CVSS baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: the CNA's CVSS, EPSS, GitHub Security Advisory

Also known asEUVD-2026-44395 (ENISA EUVD) · GHSA-mmjf-rqrv-855v (GitHub Security Advisories)Source: ENISA EUVD

7.5EG
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).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1.2%CVSS: 7.5Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

Stack-based buffer overflow in .NET Framework allows an unauthorized attacker to deny service over a network.

CVSS v3
7.5
EG Score
7.5HIGHmedium confidence
EG Risk
49
EG Risk 49/100

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)
Severity75% × 45%
Impact severity (EG Severity): CVSS 7.5 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation1.2% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Attend at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable yes (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: 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
1.2%
EPSS %ILE
68th
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 (7.5): severity, escalated by confirmed exploitation. This CVE's 7.5 is its impact severity (EG Severity), not escalated.

EG Severity
7.5 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
1.2% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-11-10). 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; Attend at high (mission-essential systems).CISA BOD 26-04: 14 days if the affected system is publicly exposed; 60 days 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 or medium mission impact; Attend at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation none (CISA Vulnrichment) · Automatable yes (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)14 days if the affected system is publicly exposed; 60 days if it is not.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable yes (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 14, 2026

Last Modified

November 10, 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-2026-50527

Patch Availability(21)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubuntudotnet10 (10.0.110-10.0.10-0ubuntu1~26.04.1) @ resolute2026-11-10ubuntu
redhatdotnet8.0-0:8.0.130-1.el10_02026-08-24redhat
redhatdotnet8.0-0:8.0.130-1.el9_42026-08-24redhat
redhatdotnet8.0-0:8.0.130-1.el9_62026-08-24redhat
redhatdotnet9.0-0:9.0.120-1.el9_62026-08-24redhat
redhatdotnet9.0-0:9.0.120-1.el10_02026-08-24redhat
redhatdotnet8.0-0:8.0.129-1.el8_102026-07-20redhat
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
redhatdotnet10.0-0:10.0.110-1.el10_22026-07-20redhat
redhatdotnet9.0-0:9.0.119-1.el8_102026-07-20redhat
redhatdotnet10.0-0:10.0.110-1.el8_102026-07-20redhat
redhatdotnet8.0-0:8.0.129-1.el9_82026-07-20redhat
redhatdotnet8.0-0:8.0.129-1.el10_22026-07-20redhat
redhatdotnet9.0-0:9.0.119-1.el10_22026-07-20redhat
redhatdotnet9-0-main-9.0.118-1.hum12026-06-19redhat
redhatdotnet10-0-main-10.0.109-1.hum12026-06-17redhat
nugetSystem.Security.Cryptography.Xml @ 10.0.10 (fixes >= 10.0.0, <= 10.0.9)—ghsa
nugetSystem.Security.Cryptography.Xml @ 9.0.18 (fixes >= 9.0.0, <= 9.0.17)—ghsa
nugetSystem.Security.Cryptography.Xml @ 8.0.4 (fixes >= 8.0.0, <= 8.0.3)—ghsa

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

(9 across 4 ecosystems)
Alpine:v3.23(3)
PackageVulnerable rangeFix by version rangeDependents
dotnet10-runtime—
  • every version up to 10.0.10-r0: fixed in 10.0.10-r0
—
dotnet8-runtime—
  • every version up to 8.0.29-r0: fixed in 8.0.29-r0
—
dotnet9-runtime—
  • every version up to 9.0.18-r0: fixed in 9.0.18-r0
—
Alpine:v3.24(3)
PackageVulnerable rangeFix by version rangeDependents
dotnet10-runtime—
  • every version up to 10.0.10-r0: fixed in 10.0.10-r0
—
dotnet8-runtime—
  • every version up to 8.0.29-r0: fixed in 8.0.29-r0
—
dotnet9-runtime—
  • every version up to 9.0.18-r0: fixed in 9.0.18-r0
—
Alpine:v3.22(2)
PackageVulnerable rangeFix by version rangeDependents
dotnet8-runtime—
  • every version up to 8.0.29-r0: fixed in 8.0.29-r0
—
dotnet9-runtime—
  • every version up to 9.0.18-r0: fixed in 9.0.18-r0
—
NuGet(1)
PackageVulnerable rangeFix by version rangeDependents
System.Security.Cryptography.Xml8.0.0, 8.0.1, 8.0.2, 8.0.3
  • 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 8.0.4: fixed in 8.0.4
—

Weakness Classification(1)

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 11× 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 its CVE.org record (CNA or CISA ADP). 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). "EchelonGraph re-scored" is our own recompute of this CVE's score, not an update from a source, and is not counted in the refreshes above. Most recent first.

Showing the most recent 100 of 306 rows 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 206 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-13 16:53 UTCEPSS rescoreEPSS 1.2% · 68th percentile
  2. 2026-11-12 16:34 UTCEPSS rescoreEPSS 1.2% · 67th percentile
  3. 2026-11-11 16:40 UTCEPSS rescoreEPSS 1.2% · 67th percentile
  4. 2026-11-10 22:47 UTCEchelonGraph re-scored
  5. 2026-11-10 22:47 UTCVendor advisory
  6. 2026-11-10 22:47 UTCGHSA enrichmentGHSA-mmjf-rqrv-855v · GitHub severity HIGH · GitHub CVSS 7.5
  7. 2026-11-10 16:44 UTCEPSS rescoreEPSS 1.2% · 67th percentile
  8. 2026-11-09 16:35 UTCEPSS rescoreEPSS 1.2% · 67th percentile
  9. 2026-11-08 17:27 UTCEchelonGraph re-scored
  10. 2026-11-08 17:27 UTCVendor advisory
  11. 2026-11-08 17:27 UTCGHSA enrichmentGHSA-mmjf-rqrv-855v · GitHub severity HIGH · GitHub CVSS 7.5
  12. 2026-11-08 16:39 UTCEPSS rescoreEPSS 1.2% · 67th percentile
  13. 2026-11-07 16:39 UTCEPSS rescoreEPSS 1.2% · 67th percentile
  14. 2026-11-06 16:38 UTCEPSS rescoreEPSS 1.2% · 67th percentile
  15. 2026-11-05 16:38 UTCEPSS rescoreEPSS 1.2% · 67th percentile
  16. 2026-11-04 16:35 UTCEPSS rescoreEPSS 1.2% · 67th percentile
  17. 2026-11-03 16:48 UTCEPSS rescoreEPSS 1.2% · 67th percentile
  18. 2026-11-02 16:46 UTCEPSS rescoreEPSS 1.2% · 67th percentile
  19. 2026-11-01 17:43 UTCEchelonGraph re-scored
  20. 2026-11-01 17:43 UTCVendor advisory
  21. 2026-11-01 17:43 UTCGHSA enrichmentGHSA-mmjf-rqrv-855v · GitHub severity HIGH · GitHub CVSS 7.5
  22. 2026-11-01 16:34 UTCEPSS rescoreEPSS 1.2% · 67th percentile
  23. 2026-11-01 07:45 UTCGHSA enrichmentGHSA-mmjf-rqrv-855v · GitHub severity HIGH · GitHub CVSS 7.5
  24. 2026-11-01 07:45 UTCEchelonGraph re-scored
  25. 2026-10-31 16:33 UTCEPSS rescoreEPSS 1.2% · 67th percentile
Show 75 more
  1. 2026-10-30 16:34 UTCEPSS rescoreEPSS 1.2% · 67th percentile
  2. 2026-10-29 16:33 UTCEPSS rescoreEPSS 1.2% · 67th percentile
  3. 2026-10-28 20:27 UTCEchelonGraph re-scored
  4. 2026-10-28 20:27 UTCVendor advisory
  5. 2026-10-28 20:13 UTCEchelonGraph re-scored
  6. 2026-10-28 20:13 UTCVendor advisory
  7. 2026-10-28 16:32 UTCEPSS rescoreEPSS 1.2% · 67th percentile
  8. 2026-10-27 16:32 UTCEPSS rescoreEPSS 1.2% · 67th percentile
  9. 2026-10-26 16:31 UTCEPSS rescoreEPSS 1.2% · 67th percentile
  10. 2026-10-25 16:33 UTCEPSS rescoreEPSS 1.2% · 67th percentile
  11. 2026-10-25 14:22 UTCEchelonGraph re-scored
  12. 2026-10-24 16:33 UTCEPSS rescoreEPSS 1.2% · 67th percentile
  13. 2026-10-24 11:28 UTCEchelonGraph re-scored
  14. 2026-10-24 11:28 UTCVendor advisory
  15. 2026-10-23 16:32 UTCEPSS rescoreEPSS 1.2% · 67th percentile
  16. 2026-10-22 16:34 UTCEPSS rescoreEPSS 1.2% · 67th percentile
  17. 2026-10-21 16:33 UTCEPSS rescoreEPSS 1.2% · 67th percentile
  18. 2026-10-20 16:33 UTCEPSS rescoreEPSS 1.2% · 67th percentile
  19. 2026-10-19 16:32 UTCEPSS rescoreEPSS 1.2% · 67th percentile
  20. 2026-10-18 16:32 UTCEPSS rescoreEPSS 1.2% · 67th percentile
  21. 2026-10-18 03:33 UTCEchelonGraph re-scored
  22. 2026-10-17 16:34 UTCEPSS rescoreEPSS 1.2% · 67th percentile
  23. 2026-10-17 11:40 UTCEchelonGraph re-scored
  24. 2026-10-17 11:40 UTCVendor advisory
  25. 2026-10-16 16:42 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  26. 2026-10-15 16:32 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  27. 2026-10-14 16:33 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  28. 2026-10-13 16:34 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  29. 2026-10-12 16:34 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  30. 2026-10-12 15:59 UTCEchelonGraph re-scored
  31. 2026-10-11 19:42 UTCEchelonGraph re-scored
  32. 2026-10-11 16:57 UTCEchelonGraph re-scored
  33. 2026-10-11 14:20 UTCEchelonGraph re-scored
  34. 2026-10-11 13:49 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  35. 2026-10-10 20:00 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  36. 2026-10-09 20:07 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  37. 2026-10-08 19:15 UTCEchelonGraph re-scored
  38. 2026-10-08 19:15 UTCVendor advisory
  39. 2026-10-08 17:12 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  40. 2026-10-07 23:48 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  41. 2026-10-06 15:18 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  42. 2026-10-05 17:43 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  43. 2026-10-04 23:22 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  44. 2026-10-03 14:26 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  45. 2026-10-02 17:56 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  46. 2026-10-01 19:50 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  47. 2026-10-01 12:53 UTCEchelonGraph re-scored
  48. 2026-10-01 12:53 UTCVendor advisory
  49. 2026-09-30 15:03 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  50. 2026-09-28 13:51 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  51. 2026-09-28 08:55 UTCEchelonGraph re-scored
  52. 2026-09-28 08:55 UTCVendor advisory
  53. 2026-09-27 13:48 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  54. 2026-09-26 15:59 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  55. 2026-09-26 00:27 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  56. 2026-09-25 18:40 UTCEchelonGraph re-scored
  57. 2026-09-25 18:40 UTCVendor advisory
  58. 2026-09-24 09:01 UTCEchelonGraph re-scored
  59. 2026-09-24 09:01 UTCVendor advisory
  60. 2026-09-23 17:53 UTCEPSS rescoreEPSS 0.8% · 56th percentile
  61. 2026-09-23 03:29 UTCEchelonGraph re-scored
  62. 2026-09-23 03:29 UTCVendor advisory
  63. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.8% · 56th percentile
  64. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.8% · 56th percentile
  65. 2026-09-18 10:01 UTCVendor advisory
  66. 2026-09-17 22:45 UTCEchelonGraph re-scored
  67. 2026-09-17 22:45 UTCVendor advisory
  68. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.8% · 56th percentile
  69. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.8% · 55th percentile
  70. 2026-09-14 10:24 UTCVendor advisory
  71. 2026-09-13 23:16 UTCEchelonGraph re-scored
  72. 2026-09-13 23:16 UTCVendor advisory
  73. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.8% · 55th percentile
  74. 2026-09-13 07:40 UTCEchelonGraph re-scored
  75. 2026-09-13 07:40 UTCVendor advisory

Frequently asked(5)

What is CVE-2026-50527?
CVE-2026-50527 is a high-severity vulnerability; its CVE record was published on July 14, 2026. Stack-based buffer overflow in .NET Framework allows an unauthorized attacker to deny service over a network.
When was CVE-2026-50527 made public?
CVE-2026-50527 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 November 10, 2026; the record at its source may have been updated since.
Is CVE-2026-50527 actively exploited?
CVE-2026-50527 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1.2% probability of exploitation in the next 30 days (68th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-50527?
CVE-2026-50527 has a CVSS base score of 7.5 (the CNA's own assessment, by microsoft; NVD's own analysis pending).
How do I remediate CVE-2026-50527?
A fix for CVE-2026-50527 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-50527 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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