CVE-2009-2604: Multiple SQL injection vulnerabilities in adminlogin.asp in Zen Help Desk 2.1 allow remote attackers to execut

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HIGH 7.5DOWNGRADE

CVE-2009-2604 is a high-severity flaw (CVSS 7.5) affecting zen help desk. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Multiple SQL injection vulnerabilities in adminlogin.asp in Zen Help Desk 2.1 allow remote attackers to execute arbitrary SQL commands via the (1) userid (aka username) and (2) PassWord parameters to admin.asp.

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	0.9% (top 39%)
CISA exploited list	No
Weakness	CWE-89
Published	2009-07-27
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: zenhelpdesk

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

Am I affected?

Timeline

2009-07-27 14:30 UTCPublished CVE record published
2026-06-16 23:09 UTCUpdated Record last modified

zenhelpdesk zen help desk DOWNGRADE

Affected: 2.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.1

1. Check installed version

apt-cache policy zen-help-desk || rpm -q zen-help-desk || zen-help-desk --version

2. No fixed release: DOWNGRADE to a release before 2.1 (Debian / Ubuntu)

apt-cache madison zen-help-desk sudo apt install zen-help-desk=<VERSION_BEFORE_2.1> sudo apt-mark hold zen-help-desk

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

dnf --showduplicates list zen-help-desk sudo dnf downgrade zen-help-desk-<VERSION_BEFORE_2.1> sudo dnf versionlock add zen-help-desk

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: Zen Help Desk 2.1 - 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-2009-2604?

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

Is CVE-2009-2604 being exploited?

CVE-2009-2604 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-2009-2604 affect?

CVE-2009-2604 affects zen help desk. Severity is high (CVSS 7.5). Multiple SQL injection vulnerabilities in adminlogin.asp in Zen Help Desk 2.1 allow remote attackers to execute arbitrary SQL commands via the (1) userid (aka username) and (2) PassWord parameters to admin.asp.

How urgent is CVE-2009-2604?

Priority 46/100. High severity; Public exploit reference

Related CVEs

CVE-2007-3146 MEDIUM 5.0 DOWNGRADE Zen Help Desk 2.1 stores sensitive information under the web root with insufficient access control, which allo

References

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