high Known exploitedREV. 01

CVE-2023-38180Microsoft framework — a request that stops the service

Microsoft's application framework (.NET) and Visual Studio can be driven into a denial of service. Microsoft publishes the class of flaw and nothing about the trigger, the affected component, or how much traffic it takes.

YOUR NEXT MOVE

Install the August 2023 updates for the framework and Visual Studio, then rebuild self-contained applications — those carry their own copy of the runtime.

Read the risk

THE VITAL STATS
CVSS score
7.5/ 10
CVSS v3.1
EPSS probability
14%
Likelihood of exploitation
Attack complexity
Low
Conditions needed to exploit
Known exploited
Yes — CISA KEV
CVE published
2023-08-08
Added to KEV
2023-08-09
Exploit published
Not recorded
Confidence
high
Kill chain
impact
MITRE ATT&CK
T1499
Severity
high

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attacker needsNetwork access to an application built on the affected framework.

Behind the card

3 REFERENCES
Field-level provenanceTRACE THE SOURCES +

Which source supports each field, when it was retrieved, and who extracted it.

FieldsSourceRetrievedExtractorConfidence
cvss, exploitation.attack_complexity, exploitation.exploit_available, references, published_atnvd.nist.gov2026-09-24scrty-crds-pipeline/0.1high
exploitation.known_exploited, exploitation.kev_addedcisa.gov2026-09-24scrty-crds-pipeline/0.1high
epssapi.first.org2026-09-24scrty-crds-pipeline/0.1high
title, summary, severity, remediation, mitre_attack, kill_chain, recommended_action, confidence, tags, exploitation.prerequisitesnvd.nist.gov2026-09-24claude-codehigh

Printing history

THE RECORD
  1. r1Initial base card

First printing. This card has not been reprinted since publication.

crds:cve-2023-38180 · CRDS 0.1 · Issued 2026-09-24