CVE-2024-33453Public exploitNetwork attack vector

Authenticated data disclosure via unchecked object identifier

Published Oct 17, 2024 · Updated Oct 18, 2024

Incorrect access control reported for ESP-IDF 5.1 allows remote authenticated users to read other users' data by changing an object identifier. The sole technical reference says an externalId-related search endpoint accepts a URL id value and returns the corresponding user record without verifying ownership. The reference identifies no ESP-IDF source location or reproducible ESP32 application, and Espressif's vulnerability list does not acknowledge this CVE, leaving the framework-level claim unverified.

CVSS severity8.1
High
EPSS probability0.97%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect access control reported for ESP-IDF 5.1 allows remote authenticated users to read other users' data by changing an object identifier. The sole technical reference says an externalId-related search endpoint accepts a URL id value and returns the corresponding user record without verifying ownership. The reference identifies no ESP-IDF source location or reproducible ESP32 application, and Espressif's vulnerability list does not acknowledge this CVE, leaving the framework-level claim unverified.

The record

CVE
CVE-2024-33453
Published
Oct 17, 2024
Updated
Oct 18, 2024
Vendor
Espressif Systems
Product
ESP-IDF
Classifications
CWE-120
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 17, 2024CVE publishedPublication date reported by the CVE source.
  2. Oct 18, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=5.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Espressif Systems · ESP-IDFversion=5.1

Published CVSS scores

8.1CISA-ADPCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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