CVE-2023-25437Public exploitNetwork attack vector

Privilege escalation via exposed SIP credentials

Published Apr 27, 2023 · Updated Jan 31, 2025

Cleartext credential exposure in VTech VCS754A firmware before 1.1.1.H allows remote authenticated users to obtain SIP credentials. The phone's administrative web interface places SIP usernames and passwords directly in returned raw HTML instead of withholding or protecting them. Low-privileged web access is required; the exposed credentials enable privilege escalation and disclosure of associated sensitive information.

CVSS severity8.8
High
EPSS probability14.11%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cleartext credential exposure in VTech VCS754A firmware before 1.1.1.H allows remote authenticated users to obtain SIP credentials. The phone's administrative web interface places SIP usernames and passwords directly in returned raw HTML instead of withholding or protecting them. Low-privileged web access is required; the exposed credentials enable privilege escalation and disclosure of associated sensitive information.

The record

CVE
CVE-2023-25437
Published
Apr 27, 2023
Updated
Jan 31, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-319
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 27, 2023CVE publishedPublication date reported by the CVE source.
  2. Jan 31, 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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-319Cleartext Transmission of Sensitive Information

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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