CVE-2023-29300KEV · OVERDUECWE-502

Adobe ColdFusion Deserialization of Untrusted Data Arbitrary code execution

Critical · published July 12, 2023

Patch now

Confirmed exploited, and the score agrees

CVSS calls it critical at 9.8. It is confirmed in active exploitation. It sits in the 100.0th percentile for exploit probability.

999
days past CISA
deadline
CVSS v3.1
9.8
EPSS
100%
Percentile
100.0
In the wild
Confirmed
What it is

🔥 A sneaky deserialization bug in Adobe ColdFusion can let attackers execute arbitrary code without lifting a finger! Think of it like a chef who blindly accepts any recipe sent into the kitchen without checking the ingredients — one wrong order and the whole meal could turn into a disaster! If exploited, this vulnerability could grant attackers full control over your ColdFusion server, allowing them to access sensitive data, manipulate applications, or even bring your entire system down. It’s absolutely devastating and poses a significant risk to your operations and data integrity!

Put simply

Think of it like a chef who blindly accepts any recipe sent into the kitchen without checking the ingredients — one wrong order and the whole meal could turn into a disaster! This deserialization vulnerability in Adobe ColdFusion allows attackers to send malicious data that can be executed on the server, leading to arbitrary code execution without any user interaction required.

What to do

If exploited, this vulnerability could grant attackers full control over your ColdFusion server, allowing them to access sensitive data, manipulate applications, or even bring your entire system down. It’s absolutely devastating and poses a significant risk to your operations and data integrity! Update your Adobe ColdFusion installation to the latest versions (2021u7 or 2023.0.0.330469), and thoroughly audit your applications to ensure they do not accept untrusted serialized data. Patching immediately is essential to protect your environment! You’ve got this! Follow these steps and you’ll have your server locked down like a pro! 🛡️

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.99991 · 100.0th percentile
Weakness
CWE-502 · Deserialization of Untrusted Data
Published
2023-07-12T15:46Z
KEV added
2024-01-08 · due 2024-01-29
EPSS history
Timeline
  • 08 JAN 00:00Z
    Added to CISA KEV — remediate by Jan 29
    kev
  • 12 JUL 15:46Z
    Adobe ColdFusion Deserialization of Untrusted Data Arbitrary code execution
    cvelistv5