critical Known exploitedREV. 01

CVE-2023-29300Adobe ColdFusion — Deserialization to Remote Code Execution

Adobe ColdFusion deserializes untrusted data, letting an unauthenticated request run code on the application server.

YOUR NEXT MOVE

Apply Adobe's ColdFusion update for the 2018, 2021 and 2023 releases, and check for web shells left behind.

Read the risk

THE VITAL STATS
CVSS score
9.8/ 10
CVSS v3.1
EPSS probability
100%
Likelihood of exploitation
Attack complexity
Low
Conditions needed to exploit
Known exploited
Yes — CISA KEV
CVE published
2023-07-12
Added to KEV
2024-01-08
Exploit published
Not recorded
Confidence
high
Kill chain
initial access
MITRE ATT&CK
T1190, T1059
Severity
critical

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

Attacker needsNetwork access to the application server

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.gov2026-08-07scrty-crds-pipeline/0.1high
exploitation.known_exploited, exploitation.kev_addedcisa.gov2026-08-07scrty-crds-pipeline/0.1high
epssapi.first.org2026-08-07scrty-crds-pipeline/0.1high
title, summary, severity, remediation, mitre_attack, kill_chain, recommended_action, confidence, tags, exploitation.prerequisitesnvd.nist.gov2026-08-07claude-codehigh

Printing history

THE RECORD
  1. r1Initial base card

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

crds:cve-2023-29300 · CRDS 0.1 · Issued 2026-08-07