CVE-2023-29492Known exploitationNetwork attack vector

Unauthenticated code execution via insecure deserialization

Published Apr 11, 2023 · Updated Oct 21, 2025

Insecure deserialization in 3rd Millennium Novi Survey before 8.9.43676 allows remote attackers to execute code as the service account. The vendor has not published the affected endpoint, serialized-data format, or unsafe deserialization operation. Network access without authentication is sufficient; execution is confined to service-account privileges and does not expose stored survey or response data.

CVSS severity9.8
Critical
EPSS probability2.69%
Next 30 days · Sep 16, 2026
Known exploitationReported
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Insecure deserialization in 3rd Millennium Novi Survey before 8.9.43676 allows remote attackers to execute code as the service account. The vendor has not published the affected endpoint, serialized-data format, or unsafe deserialization operation. Network access without authentication is sufficient; execution is confined to service-account privileges and does not expose stored survey or response data.

The record

CVE
CVE-2023-29492
Published
Apr 11, 2023
Updated
Oct 21, 2025
Vendor
3rd Millennium, Inc.
Product
Novi Survey
Classifications
CWE-94, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 11, 2023CVE publishedPublication date reported by the CVE source.
  2. Apr 13, 2023Exploitation reportedCISA Known Exploited Vulnerabilities catalog listing
  3. Oct 21, 2025Record 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=0 <8.9.43676

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

3rd Millennium, Inc. · Novi Surveyversion=0 <8.9.43676

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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
Privilegesunauthenticated
Known exploitationReported
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code Injection')
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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

Reported exploitation

Technologies

Your stack

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Your stack

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