CVE-2006-6910: formbankcgi.exe in Fersch Formbankserver 1.9, when the PATH_INFO begins with Abfrage, allows remote attackers

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HIGH 7.8DOWNGRADE

CVE-2006-6910 is a high-severity flaw (CVSS 7.8) affecting formbankserver. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

formbankcgi.exe in Fersch Formbankserver 1.9, when the PATH_INFO begins with Abfrage, allows remote attackers to cause a denial of service (daemon crash) via multiple requests containing many /../ sequences in the Name parameter.

Why this priority

High severity
Public exploit reference

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

Risk facts

CVSS score	7.8 (High)
EPSS exploit chance	3.3% (top 11%)
CISA exploited list	No
Published	2006-12-31
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: fersch

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

Am I affected?

Timeline

2006-12-31 05:00 UTCPublished CVE record published
2026-06-16 22:34 UTCUpdated Record last modified

fersch formbankserver DOWNGRADE

Affected: 1.9

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.9

1. Check installed version

apt-cache policy formbankserver || rpm -q formbankserver || formbankserver --version

2. No fixed release: DOWNGRADE to a release before 1.9 (Debian / Ubuntu)

apt-cache madison formbankserver sudo apt install formbankserver=<VERSION_BEFORE_1.9> sudo apt-mark hold formbankserver

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

dnf --showduplicates list formbankserver sudo dnf downgrade formbankserver-<VERSION_BEFORE_1.9> sudo dnf versionlock add formbankserver

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: Formbankserver 1.9 - 'Name' 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-2006-6910?

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

Is CVE-2006-6910 being exploited?

CVE-2006-6910 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-2006-6910 affect?

CVE-2006-6910 affects formbankserver. Severity is high (CVSS 7.8). formbankcgi.exe in Fersch Formbankserver 1.9, when the PATH_INFO begins with Abfrage, allows remote attackers to cause a denial of service (daemon crash) via multiple requests containing many /../ sequences in the Name parameter.

How urgent is CVE-2006-6910?

Priority 54/100. High severity; Public exploit reference

Related CVEs

CVE-2007-0138 MEDIUM 5.0 DOWNGRADE formbankcgi.exe in Fersch Formbankserver 1.9, when the PATH_INFO begins with (1) AbfrageForm or (2) EingabeFor
CVE-2007-0055 MEDIUM 5.0 DOWNGRADE Directory traversal vulnerability in formbankcgi.exe/AbfrageForm in Formbankserver 1.9 allows remote attackers

References

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