high Known exploitedREV. 01

CVE-2023-29336Windows — freed memory in the kernel graphics component

A use-after-free in the Windows kernel graphics component lifts a local attacker to the machine's highest account (SYSTEM). Exploit code is public, and Microsoft publishes the class of flaw and nothing more.

YOUR NEXT MOVE

Install the May 2023 Windows update. This component has produced escalation flaws for two decades, so patch cadence matters more here than any single fix.

Read the risk

THE VITAL STATS
CVSS score
7.8/ 10
CVSS v3.1
EPSS probability
41%
Likelihood of exploitation
Attack complexity
Low
Conditions needed to exploit
Known exploited
Yes — CISA KEV
CVE published
2023-05-09
Added to KEV
2023-05-09
Exploit published
Yes
Confidence
medium
Kill chain
privilege escalation
MITRE ATT&CK
T1068
Severity
high

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

Attacker needsThe attacker must already be able to run code as a local user.

Behind the card

4 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-2023-29336 · CRDS 0.1 · Issued 2026-09-24