CVE-2005-1045: OpenText FirstClass 8.0 client does not properly sanitize strings before passing them to the Windows ShellExec

This month

HIGH 7.5DOWNGRADE

CVE-2005-1045 is a high-severity flaw (CVSS 7.5) affecting centrinity firstclass desktop client. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

OpenText FirstClass 8.0 client does not properly sanitize strings before passing them to the Windows ShellExecute API, which allows remote attackers to execute arbitrary commands via a UNC path in a bookmark.

Why this priority

High severity

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

Risk facts

CVSS score	7.5 (High)
EPSS exploit chance	2.2% (top 17%)
CISA exploited list	No
Published	2005-05-02
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: centrinity

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

Am I affected?

Timeline

2005-05-02 04:00 UTCPublished CVE record published
2026-06-16 22:12 UTCUpdated Record last modified

centrinity centrinity firstclass desktop client DOWNGRADE

Affected: 8.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 8.0

1. Check installed version

apt-cache policy centrinity-firstclass-desktop-client || rpm -q centrinity-firstclass-desktop-client || centrinity-firstclass-desktop-client --version

2. No fixed release: DOWNGRADE to a release before 8.0 (Debian / Ubuntu)

apt-cache madison centrinity-firstclass-desktop-client sudo apt install centrinity-firstclass-desktop-client=<VERSION_BEFORE_8.0> sudo apt-mark hold centrinity-firstclass-desktop-client

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

dnf --showduplicates list centrinity-firstclass-desktop-client sudo dnf downgrade centrinity-firstclass-desktop-client-<VERSION_BEFORE_8.0> sudo dnf versionlock add centrinity-firstclass-desktop-client

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.

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-2005-1045?

centrinity firstclass desktop client: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2005-1045 being exploited?

CVE-2005-1045 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-2005-1045 affect?

CVE-2005-1045 affects centrinity firstclass desktop client. Severity is high (CVSS 7.5). OpenText FirstClass 8.0 client does not properly sanitize strings before passing them to the Windows ShellExecute API, which allows remote attackers to execute arbitrary commands via a UNC path in a bookmark.

How urgent is CVE-2005-1045?

Priority 47/100. High severity

Software pages

Windows vulnerabilities

References

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