CVE-2004-1813: VocalTec VGW4/8 Gateway 8.0 allows remote attackers to bypass authentication via an HTTP request to home.asp w

This month

HIGH 7.5MITIGATE

CVE-2004-1813 is a high-severity flaw (CVSS 7.5) affecting vgw4 8 telephony gateway. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

VocalTec VGW4/8 Gateway 8.0 allows remote attackers to bypass authentication via an HTTP request to home.asp with a trailing slash (/).

Why this priority

High severity
Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	7.5 (High)
EPSS exploit chance	3.3% (top 12%)
CISA exploited list	No
Published	2004-12-31
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: vocaltec

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2004-12-31 05:00 UTCPublished CVE record published
2026-06-16 22:08 UTCUpdated Record last modified

vocaltec vgw4 8 telephony gateway MITIGATE

Affected: 8.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 8.0

Firmware

Install the latest firmware from the vendor advisory; if none, apply the vendor workaround.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Exploit-DB: VocalTec VGW4/8 Telephony Gateway - Remote Authentication Bypass

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2004-1813?

vgw4 8 telephony gateway: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2004-1813 being exploited?

CVE-2004-1813 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2004-1813 affect?

CVE-2004-1813 affects vgw4 8 telephony gateway. Severity is high (CVSS 7.5). VocalTec VGW4/8 Gateway 8.0 allows remote attackers to bypass authentication via an HTTP request to home.asp with a trailing slash (/).

How urgent is CVE-2004-1813?

Priority 53/100. High severity; Public exploit reference

Related CVEs

CVE-2004-1814 MEDIUM 5.0 MITIGATE Directory traversal vulnerability in VocalTec VGW4/8 Gateway 8.0 allows remote attackers to read protected fil

References

← Back to latest CVEs