How severe is CVE-2005-0453?

CVE-2005-0453 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2005-0453 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2005-0453?

CVE-2005-0453 affects Lighttpd. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2005-0453?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2005-0453 published?

CVE-2005-0453 was published on 2005-02-16 and last updated on 2026-06-16.

CVE-2005-0453

CVE-2005-0453 is a medium-severity vulnerability in Lighttpd with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 2% (75th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Lighttpd
Published: 2005-02-16
Last modified: 2026-06-16

Description

The buffer_urldecode function in Lighttpd 1.3.7 and earlier does not properly handle control characters, which allows remote attackers to obtain the source code for CGI and FastCGI scripts via a URL with a %00 (null) character after the file extension.

Frequently asked questions

What is CVE-2005-0453?: The buffer_urldecode function in Lighttpd 1.3.7 and earlier does not properly handle control characters, which allows remote attackers to obtain the source code for CGI and FastCGI scripts via a URL with a %00 (null) character after the file extension.
How severe is CVE-2005-0453?: CVE-2005-0453 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2005-0453 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2005-0453?: CVE-2005-0453 affects Lighttpd. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2005-0453?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2005-0453 published?: CVE-2005-0453 was published on 2005-02-16 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:lighttpd:lighttpd:1.3.7:*:*:*:*:*:*:*

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