CVE-2023-38180

CRITICALNVD 7.59.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2023-08-09), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 7.5 retained for reference. Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa_kev, epss, nvd
Trending — 4 sources updated this weekExploited in the wild
9.0EG
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS PROB: 14%CVSS: 7.5Exploit: cisa kev · ssvc active · epss top5pctExposed: 0

A fix is available — apply it.

.NET and Visual Studio Denial of Service Vulnerability

CVSS v3
7.5
EG Score
9.0(high)
EG Risk
96(Attend)
EG Risk 96/100SSVC: Attend

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
Severity90% × 45%
Exploitation100% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
14%
EPSS %ILE
96%
KEV
⚠ Exploited

Published

August 8, 2023

Last Modified

August 10, 2026

Advisory Details (4)

Auto-updated Jun 4, 2026
⚠️ Active exploitation confirmed. Patch available. Sources: microsoft, cisa.
cisa Patch Available🔴 Active Exploitation

Known Exploited Vulnerabilities Catalog | CISA

Known Exploited Vulnerabilities Catalog | CISA. Listed in CISA Known Exploited Vulnerabilities catalog.

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-38180
microsoft Patch Available

Security Update Guide - Microsoft Security Response Center

Security Update Guide - Microsoft Security Response Center. Patch available via Microsoft Security Update

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-38180
generic

[SECURITY] Fedora 37 Update: dotnet7.0-7.0.110-1.fc37 - package-announce - Fedora mailing-lists

https://lists.fedoraproject.org/archives/list/[email protected]/message/NWVZFKTLNMNKPZ755EMRYIA6GHFOWGKY/
generic

[SECURITY] Fedora 38 Update: dotnet7.0-7.0.110-1.fc38 - package-announce - Fedora mailing-lists

https://lists.fedoraproject.org/archives/list/[email protected]/message/CL2L4WE5QRT7WEXANYXSKSU43APC5N2V/

Patch Availability(9)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntunetstandard-targeting-pack-2.1-7.0 (7.0.110-0ubuntu1~23.04.1) @ lunar2026-09-19ubuntu
ubuntunetstandard-targeting-pack-2.1-7.0 (7.0.110-0ubuntu1~22.04.1) @ jammy2026-09-19ubuntu
redhatdotnet6.0-0:6.0.121-1.el9_02023-08-14redhat
redhatdotnet6.0-0:6.0.121-1.el8_82023-08-14redhat
redhatdotnet7.0-0:7.0.110-1.el9_22023-08-14redhat
redhatrh-dotnet60-dotnet-0:6.0.121-1.el7_92023-08-14redhat
redhatdotnet7.0-0:7.0.110-1.el8_82023-08-14redhat
redhatdotnet6.0-0:6.0.121-1.el9_22023-08-14redhat
redhatdotnet6.0-0:6.0.121-1.el8_62023-08-14redhat

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

(5 across 1 ecosystem)
NuGet(5)
PackageVulnerable rangeFixed inDependents
Microsoft.AspNetCore.App.Runtime.win-arm646.0.0 ... 6.0.9 (20 versions)6.0.21—
Microsoft.AspNetCore.App.Runtime.win-x646.0.0 ... 6.0.9 (20 versions)6.0.21—
Microsoft.AspNetCore.App.Runtime.win-x866.0.0 ... 6.0.9 (20 versions)6.0.21—
Microsoft.AspNetCore.Server.Kestrel.Transport.Libuv0.0.1-alpha ... 2.1.3 (15 versions)2.1.40—
Microsoft.AspNetCore.Server.Kestrel.Transport.Sockets0.0.1-alpha ... 2.1.3 (10 versions)2.1.40—

Weakness Classification(1)

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

All Vendor Advisories

(10)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 55× in last 7d / 246× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. 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. Most recent first.

Showing the most recent 100 of 920 total refreshes for this CVE.

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

Frequently asked(6)

What is CVE-2023-38180?
CVE-2023-38180 is a critical vulnerability published on August 8, 2023. .NET and Visual Studio Denial of Service Vulnerability
When was CVE-2023-38180 disclosed?
CVE-2023-38180 was first published in the National Vulnerability Database on August 8, 2023, with the most recent update on August 10, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-38180 actively exploited?
Yes. CISA added CVE-2023-38180 to the Known Exploited Vulnerabilities catalog on August 9, 2023, affecting Microsoft .NET Core and Visual Studio. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2023-38180?
CVE-2023-38180 has a CVSS v3 base score of 7.5 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0.
Which products are affected by CVE-2023-38180?
CVE-2023-38180 affects Microsoft .NET Core and Visual Studio. The full affected-products list, including version ranges and fixed versions, is shown in the Affected Packages section of this page.
How do I remediate CVE-2023-38180?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-38180, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2023-38180

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