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Fencer Intel
high 7.5

CVE-2017-16249 in the critical feed json

The Debut embedded http server contains a remotely exploitable denial of service where a single malformed HTTP POST request can cause the s…

published 2017-11-09 8 y ago modified 2026-06-17 4 mo ago also EUVD-2017-7444

cvss
7.5
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
59.4%
EPSS 59.4% chance of exploitation in 30 days, percentile 99.1%
public exploits
2
Metasploit, Exploit-DB

Summary

The Debut embedded http server contains a remotely exploitable denial of service where a single malformed HTTP POST request can cause the server to hang until eventually replying (~300 seconds) with an HTTP 500 error. While the server is hung, print jobs over the network are blocked and the web interface is inaccessible. An attacker can continuously send this malformed request to keep the device inaccessible to legitimate traffic.

Timeline

  1. First public exploit (Metasploit auxiliary/dos/http/brother_debut_dos)
  2. Published

Exploit prediction

59.39% chance of exploitation in the next 30 days, higher than 99.1% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • Metasploit auxiliary/dos/http/brother_debut_dos Brother Debut http Denial Of Service metasploit auxiliary, normal rank, 2017-11-02
  • EDB-43119 Debut Embedded HTTPd 1.20 - Denial of Service dos, 2017-11-02
  • trustwave.com https://www.trustwave.com/Resources/Security-Advisories/Advisories/TWSL2017-017/?fid=10211 referenced PoC, tagged "exploit" by a source, unverified
  • packetstormsecurity.com http://packetstormsecurity.com/files/144908/Debut-Embedded-httpd-1.20-Denial-Of-Service.html referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.0 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 7.8 AV:N/AC:L/Au:N/C:N/I:N/A:C

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.