CVE-2002-0899: Falcon web server 2.0.0.1021 and earlier allows remote attackers to bypass access restrictions for protected f

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HIGH 7.5DOWNGRADE

CVE-2002-0899 is a high-severity flaw (CVSS 7.5) affecting falcon web server. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Falcon web server 2.0.0.1021 and earlier allows remote attackers to bypass access restrictions for protected files via a URL whose directory portion ends in a . (dot).

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	1.8% (top 22%)
CISA exploited list	No
Published	2002-10-04
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: blueface

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

Am I affected?

Timeline

2002-10-04 04:00 UTCPublished CVE record published
2026-06-16 21:58 UTCUpdated Record last modified

blueface falcon web server DOWNGRADE

Affected: 2.0.0.1021 · 2.0.0.1021_ssl

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.0.0.1021

1. Check installed version

apt-cache policy falcon-web-server || rpm -q falcon-web-server || falcon-web-server --version

2. No fixed release: DOWNGRADE to a release before 2.0.0.1021 (Debian / Ubuntu)

apt-cache madison falcon-web-server sudo apt install falcon-web-server=<VERSION_BEFORE_2.0.0.1021> sudo apt-mark hold falcon-web-server

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

dnf --showduplicates list falcon-web-server sudo dnf downgrade falcon-web-server-<VERSION_BEFORE_2.0.0.1021> sudo dnf versionlock add falcon-web-server

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-2002-0899?

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

Is CVE-2002-0899 being exploited?

CVE-2002-0899 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-2002-0899 affect?

CVE-2002-0899 affects falcon web server. Severity is high (CVSS 7.5). Falcon web server 2.0.0.1021 and earlier allows remote attackers to bypass access restrictions for protected files via a URL whose directory portion ends in a . (dot).

How urgent is CVE-2002-0899?

Priority 51/100. High severity; Public exploit reference

Related CVEs

CVE-2002-2318 MEDIUM 4.3 DOWNGRADE Cross-site scripting (XSS) vulnerability in Falcon web server 2.0.0.1009 through 2.0.0.1021 allows remote atta
CVE-2002-0275 MEDIUM 5.0 DOWNGRADE Falcon web server 2.0.0.1020 and earlier allows remote attackers to bypass authentication and read restricted

References

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