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Fencer Vulns
high 7.5

CVE-2017-5850 in the critical feed json

httpd in OpenBSD allows remote attackers to cause a denial of service (memory consumption) via a series of requests for a large file using…

published 2017-03-27 9 y ago modified 2026-06-17 4 mo ago also EUVD-2017-14927

cvss
7.5
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
17.2%
EPSS 17.2% chance of exploitation in 30 days, percentile 97%
public exploits
1
Exploit-DB

Summary

httpd in OpenBSD allows remote attackers to cause a denial of service (memory consumption) via a series of requests for a large file using an HTTP Range header.

Patch / fix

Timeline

  1. First public exploit (EDB-41278)
  2. Published

Exploit prediction

17.20% chance of exploitation in the next 30 days, higher than 97% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-41278 OpenBSD HTTPd < 6.0 - Memory Exhaustion Denial of Service dos, 2017-02-07
  • pierrekim.github.io https://pierrekim.github.io/blog/2017-02-07-openbsd-httpd-CVE-2017-5850.html referenced PoC, tagged "exploit" by a source, unverified
  • packetstormsecurity.com http://packetstormsecurity.com/files/140944/OpenBSD-HTTP-Server-6.0-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

Classification

Weakness
  • CWE-770 Allocation of Resources Without Limits or Throttling

References

Sources

Fencer Vulns 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.