MEDIUM SEVERITY

CVE-2007-3947

Lighttpd vulnerability

CVSS
5.8
EPSS
8.1%
EPSS pct
94th
Exploited
No known
request.c in lighttpd 1.4.15 allows remote attackers to cause a denial of service (daemon crash) by sending an HTTP request with duplicate headers, as demonstrated by a request containing two Location header lines, which results in a segmentation fault.
Affected vendor
Lighttpd
Affected product
Lighttpd
CVSS vector
AV:N/AC:M/Au:N/C:P/I:N/A:P
Published
2007-07-24

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, medium attack complexity, requiring no authentication. Successful exploitation leads to partial impact to confidentiality, partial impact to availability.

Its EPSS score of 8.1% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 94% of all scored CVEs.

Check your external exposure to CVE-2007-3947

  • Confirm whether Lighttpd Lighttpd is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2007-3947.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2007-3947

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2007-3947 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

Run a free external exposure scan

Are you exposed to CVE-2007-3947?

Run an instant, non-intrusive external scan to check your attack surface for CVE-2007-3947.

Start free scan

No credit card. Agentless.