CVE-2002-2427: The security handler in GoAhead WebServer before 2.1.1 allows remote attackers to bypass authentication and ob

Q: How do I fix CVE-2002-2427?

goahead webserver: upgrade to newer than 2.1. Exact commands for each OS are on this page.

Q: Is CVE-2002-2427 being exploited?

CVE-2002-2427 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2002-2427 affect?

CVE-2002-2427 affects goahead webserver. Severity is medium (CVSS 5.0). The security handler in GoAhead WebServer before 2.1.1 allows remote attackers to bypass authentication and obtain access to protected web content via "an extra slash in a URL," a different vulnerability than CVE-2002-1603.

Q: How urgent is CVE-2002-2427?

Priority 35/100. No elevated risk signals yet.

Routine

MEDIUM 5.0UPGRADE

CVE-2002-2427 is a medium-severity flaw (CVSS 5.0) affecting goahead webserver. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The security handler in GoAhead WebServer before 2.1.1 allows remote attackers to bypass authentication and obtain access to protected web content via "an extra slash in a URL," a different vulnerability than CVE-2002-1603.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	5.0 (Medium)
EPSS exploit chance	1.3% (top 29%)
CISA exploited list	No
Weakness	CWE-287
Published	2009-02-06
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: goahead

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

Am I affected?

Timeline

2009-02-06 19:30 UTCPublished CVE record published
2026-06-16 22:01 UTCUpdated Record last modified

goahead goahead webserver UPGRADE

Affected: <= 2.1 · 2.0

Fixed in: newer than 2.1

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy goahead-webserver || rpm -q goahead-webserver || goahead-webserver --version

2. UPGRADE to newer than 2.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade goahead-webserver

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade goahead-webserver

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

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-2002-2427?

goahead webserver: upgrade to newer than 2.1. Exact commands for each OS are on this page.

Is CVE-2002-2427 being exploited?

CVE-2002-2427 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-2002-2427 affect?

CVE-2002-2427 affects goahead webserver. Severity is medium (CVSS 5.0). The security handler in GoAhead WebServer before 2.1.1 allows remote attackers to bypass authentication and obtain access to protected web content via "an extra slash in a URL," a different vulnerability than CVE-2002-1603.

How urgent is CVE-2002-2427?

Priority 35/100. No elevated risk signals yet.

Related CVEs

CVE-2011-4273 MEDIUM 4.3 DOWNGRADE Multiple cross-site scripting (XSS) vulnerabilities in GoAhead Webserver 2.18 allow remote attackers to inject
CVE-2009-5111 MEDIUM 5.0 MITIGATE GoAhead WebServer allows remote attackers to cause a denial of service (daemon outage) via partial HTTP reques
CVE-2007-6702 MEDIUM 5.0 MITIGATE MITIGATE goform/QuickStart_c0 on the GoAhead Web Server on the FS4104-AW (aka rooter) VDSL device contains a password i
CVE-2003-1569 MEDIUM 5.0 UPGRADE GoAhead WebServer before 2.1.5 on Windows 95, 98, and ME allows remote attackers to cause a denial of service
CVE-2003-1568 MEDIUM 5.0 DOWNGRADE UPGRADE GoAhead WebServer before 2.1.6 allows remote attackers to cause a denial of service (NULL pointer dereference

References

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