CVE-2004-2129: SurfNOW 2.2 allows remote attackers to cause a denial of service (crash) via a series of long HTTP GET request

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MEDIUM 5.0DOWNGRADEDOWNGRADE

CVE-2004-2129 is a medium-severity flaw (CVSS 5.0) affecting surfnow professional, surfnow standard. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

SurfNOW 2.2 allows remote attackers to cause a denial of service (crash) via a series of long HTTP GET requests, possibly triggering a buffer overflow.

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	3.4% (top 11%)
CISA exploited list	No
Published	2004-12-31
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: loom software

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 22:09 UTCUpdated Record last modified

loom software surfnow professional DOWNGRADE

Affected: 1.2 · 1.4 · 1.5 · 1.6 · 2.0 · 2.1 · 2.2

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.2

1. Check installed version

apt-cache policy surfnow-professional || rpm -q surfnow-professional || surfnow-professional --version

2. No fixed release: DOWNGRADE to a release before 1.2 (Debian / Ubuntu)

apt-cache madison surfnow-professional sudo apt install surfnow-professional=<VERSION_BEFORE_1.2> sudo apt-mark hold surfnow-professional

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

dnf --showduplicates list surfnow-professional sudo dnf downgrade surfnow-professional-<VERSION_BEFORE_1.2> sudo dnf versionlock add surfnow-professional

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.

loom software surfnow standard DOWNGRADE

Affected: 1.2 · 1.4 · 1.5 · 1.6 · 2.0 · 2.1 · 2.2

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.2

1. Check installed version

apt-cache policy surfnow-standard || rpm -q surfnow-standard || surfnow-standard --version

2. No fixed release: DOWNGRADE to a release before 1.2 (Debian / Ubuntu)

apt-cache madison surfnow-standard sudo apt install surfnow-standard=<VERSION_BEFORE_1.2> sudo apt-mark hold surfnow-standard

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

dnf --showduplicates list surfnow-standard sudo dnf downgrade surfnow-standard-<VERSION_BEFORE_1.2> sudo dnf versionlock add surfnow-standard

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: Loom Software SurfNow 1.x/2.x - GET 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-2004-2129?

surfnow professional: downgrade or apply the listed mitigation; surfnow standard: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2004-2129 being exploited?

CVE-2004-2129 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-2004-2129 affect?

CVE-2004-2129 affects surfnow professional, surfnow standard. Severity is medium (CVSS 5.0). SurfNOW 2.2 allows remote attackers to cause a denial of service (crash) via a series of long HTTP GET requests, possibly triggering a buffer overflow.

How urgent is CVE-2004-2129?

Priority 45/100. Public exploit reference

References

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