Is CVE-2007-4727 actively exploited?

CVE-2007-4727 has no public evidence of in-the-wild exploitation as of 2025-04-09.

What is the CVSS score for CVE-2007-4727?

CVE-2007-4727 has a CVSS score of 6.8 (UNKNOWN severity). Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P.

How do I patch CVE-2007-4727?

Patch guidance is available from lighttpd security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2007-4727.

CVE-2007-4727 - remediation guidance & executive summary

Description

Buffer overflow in the fcgi_env_add function in mod_proxy_backend_fastcgi.c in the mod_fastcgi extension in lighttpd before 1.4.18 allows remote attackers to overwrite arbitrary CGI variables and execute arbitrary code via an HTTP request with a long content length, as demonstrated by overwriting the SCRIPT_FILENAME variable, aka a "header overflow."

CVSS Metrics

Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P
Access Vector: network
Access Cmplx: medium
Auth: none
Confidentiality: partial
Integrity: partial
Availability: partial
Weaknesses: CWE-119 · Memory Buffer Errors

Metadata

Primary Vendor: LIGHTTPD
Published: 9/12/2007
Last Modified: 4/9/2025
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

CVE-2007-4727

Description

CVSS Metrics

Metadata

Affected Products

Remediation Guidance

Executive Summary