CVE-2023-29930Public exploitNetwork attack vector

Authenticated code execution via unrestricted TFTP configuration

Published May 10, 2023 · Updated Jan 27, 2025

Unrestricted file access in Genesys CIC Polycom phone provisioning TFTP Server allows remote authenticated users to execute arbitrary code. The configuration interface accepts an arbitrary TFTP root path and unrestricted upload extensions, allowing blind reads and writes outside the intended provisioning directory. Access requires the web configuration credentials, which are hardcoded and unchanged by default, and exploitation exposes or replaces files available to the server account.

CVSS severity8.8
High
EPSS probability2.01%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Unrestricted file access in Genesys CIC Polycom phone provisioning TFTP Server allows remote authenticated users to execute arbitrary code. The configuration interface accepts an arbitrary TFTP root path and unrestricted upload extensions, allowing blind reads and writes outside the intended provisioning directory. Access requires the web configuration credentials, which are hardcoded and unchanged by default, and exploitation exposes or replaces files available to the server account.

The record

CVE
CVE-2023-29930
Published
May 10, 2023
Updated
Jan 27, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-434, T1005, T1105
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 10, 2023CVE publishedPublication date reported by the CVE source.
  2. Jan 27, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:L/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-434Unrestricted Upload of File with Dangerous Type
T1005Data from Local System
T1105Ingress Tool Transfer

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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