Buffer overflow in the fcgi_env_add function in mod_proxy_backend_fastcgi.c in the…
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Medium
- Impact type
- Code execution
- Confidentiality · integrity · availability
- Partial · Partial · Partial
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA. Impact type from CWE-119 and the CVSS impact.
Summary
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."
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2007-4727
- 2026-10-03 Alias added: GHSA-8fr6-p7rj-wmfr
References
More Lighttpd vulnerabilities
- TI-2019-08280 lighttpd before 1.4.54 has a signed integer overflow, which might allow remote attackers… CVSS 3.0CRITICAL 9.8
- TI-2014-01841 SQL injection vulnerability in mod_mysql_vhost.c in lighttpd before 1.4.35 allows remote… CVSS 3.1CRITICAL 9.8
- TI-2022-12909 Lighttpd 1.4.56 through 1.4.58 allows a remote attacker to cause a denial of service (CPU… CVSS 3.1HIGH 7.5
- TI-2018-13505 An issue was discovered in mod_alias_physical_handler in mod_alias.c in lighttpd before… CVSS 3.1HIGH 7.5
- TI-2014-01842 Multiple directory traversal vulnerabilities in (1) mod_evhost and (2) mod_simple_vhost… CVSS 2.0MEDIUM 5.0
- TI-2013-04004 lighttpd before 1.4.33 does not check the return value of the (1) setuid, (2) setgid, or… CVSS 2.0HIGH 7.6
Sources
- CVE-2007-4727 · CVE Program
- CVE-2007-4727 · NVD
- FIRST EPSS
- GHSA-8fr6-p7rj-wmfr · GitHub Advisory Database · CC BY 4.0
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