CVE-2004-0245: Web Crossing 4.x and 5.x allows remote attackers to cause a denial of service (crash) by sending a HTTP POST r

This month

MEDIUM 5.0DOWNGRADE

CVE-2004-0245 is a medium-severity flaw (CVSS 5.0) affecting web crossing. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Web Crossing 4.x and 5.x allows remote attackers to cause a denial of service (crash) by sending a HTTP POST request with a large or negative Content-Length, which causes an integer divide-by-zero.

Why this priority

Public exploit reference

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

Risk facts

CVSS score	5.0 (Medium)
EPSS exploit chance	3.2% (top 12%)
CISA exploited list	No
Published	2004-11-23
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: web crossing inc

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

Am I affected?

Timeline

2004-11-23 05:00 UTCPublished CVE record published
2026-06-16 22:05 UTCUpdated Record last modified

web crossing inc web crossing DOWNGRADE

Affected: 4.0 · 5.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 4.0

1. Check installed version

apt-cache policy web-crossing || rpm -q web-crossing || web-crossing --version

2. No fixed release: DOWNGRADE to a release before 4.0 (Debian / Ubuntu)

apt-cache madison web-crossing sudo apt install web-crossing=<VERSION_BEFORE_4.0> sudo apt-mark hold web-crossing

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list web-crossing sudo dnf downgrade web-crossing-<VERSION_BEFORE_4.0> sudo dnf versionlock add web-crossing

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

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: Web Crossing Web Server 4.0/5.0 Component - Remote Denial of Service

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-2004-0245?

web crossing: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2004-0245 being exploited?

CVE-2004-0245 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-2004-0245 affect?

CVE-2004-0245 affects web crossing. Severity is medium (CVSS 5.0). Web Crossing 4.x and 5.x allows remote attackers to cause a denial of service (crash) by sending a HTTP POST request with a large or negative Content-Length, which causes an integer divide-by-zero.

How urgent is CVE-2004-0245?

Priority 44/100. Public exploit reference

Related CVEs

CVE-2005-1611 MEDIUM 6.8 DOWNGRADE Cross-site scripting (XSS) vulnerability in WebX in Web Crossing 5.x allows remote attackers to inject arbitra

References

← Back to latest CVEs